Urinary Tract Infections (UTI)

UTIs

Our Guides to UTIs

On this page, you will find clear, evidence- informed information about :

• What UTIs are and how they develop
• Symptoms and when to seek help
• Testing and treatment options
• Prevention strategies
• Living with recurrent or persistent symptoms.

We also have some handy guides all about UTIs for you to download with useful information from our UTI Information Nurse, Helen Lake. You can download these here:

• Understand UTIs Factsheet – This is our full guide to UTIs.
• UTI Essentials – Have you just experienced your first UTI? This guide will provide useful information.
• UTIs in Older People – If you or a loved one are older and experiencing UTIs, this guide has lots of useful information.
• Talking to your GP about recurring UTIs – If you’re dealing with persistent or recurring UTIs, it can be exhausting to explain your symptoms over and over again. This guide will help you to organise your thoughts, communicate effectively and make sure you’re heard so that you get the care you need
• Self care tips – Cystitis Symptom Relief – This guide provides evidence based self-care strategies to help relieve symptoms of cystitis.
• Self care tips for UTI prevention – This guide offers practical, evidence-based self-care strategies to help reduce the risk of developing UTIs.
• How to collect a urine specimen for a UTI Test – A properly collected urine sample gives the best chance of an accurate test result. This guide outlines steps to take to get the best sample possible.
• How to collect a urine specimen if you use a catheter – If you’re a catheter user, this guide gives you steps to follow to get the best sample possible.
• Coping with recurrent UTIs – If you’re living with recurrent UTIs, our guide is here to help you.
• Living with Chronic UTI – If you are living with ongoing UTI symptoms that don’t fully go away, this guide is for you.

Our dedicated UTI Information Service is here to help you.

Urinary Tract Infections (UTIs) are common – but for many people they are far from simple. Some people experience a one – off infection that settles quickly with treatment. Others find that infections keep coming back. And for some symptoms never seem to fully resolve.

Whatever your experience, you are not alone and support is available.

What Exactly Is a UTI?

A UTI is an infection in any part of your urinary system, which includes your kidneys, bladder, ureters, and urethra. Understanding how UTIs develop and the symptoms associated with different stages can help in effective management and timely treatment.

Most UTIs begin when bacteria, typically from the skin or rectum, enter the urethra – the tube through which urine exits the body. Once inside the urethra, these bacteria colonise, or establish themselves, before they ascend to the bladder. This colonisation can lead to cystitis, or inflammation of the bladder. If this infection is not adequately treated, the bacteria can continue moving up to the kidneys, resulting in pyelonephritis, a more serious kidney infection

How a UTI can develop : step by step

Most UTIs begin when bacteria – usually from the bowel – enter the urethra ( the tube that carries urine out of the body) From there, infection can develop in stages.

1. Bacteria enter the urethra – They can start to multiply and irritate the lining.
2. Bacteria reach the bladder – If bacteria travel to the bladder and multiply there, this can cause cystitis ( bladder infection/ inflammation).
3. Symptoms begin – You may notice burning when you wee, needing to go more often, urgent feeling of wanting to wee, or lower tummy discomfort.
4. In a small number of cases, infection spreads to the kidneys – If bacteria travel further up, this can cause pyelonephritis ( a kidney infection), which may lead to fever, back/side pain, and feeling very unwell.

Most UTIs remain in the bladder and are straightforward to treat.

Understanding simple or uncomplicated UTI

Simple UTIs Explained

A simple ( or uncomplicated) UTI is a bladder infection that occurs in someone who is otherwise healthy and has a normally functioning urinary tract.

These infections:

• Are usually limited to the bladder
• Respond well to standard antibiotics
• Are generally straightforward to treat.

Most UTIs in otherwise healthy women fall into this category.

Who is not usually classed as ‘uncomplicated’?

Some groups of people are managed more cautiously because infection may involve additional structures or carry higher risks. This includes:

• Men – because infections may involve the prostate gland as well as the bladder, which can require longer and more targeted treatment.
• Pregnant Women – because changes during pregnancy can affect how the urinary system works, and infections need careful treatment and monitoring to protect both mother and baby.

In these situations, treatment may be longer or more tailored. This does not mean that the infection is severe – but it does mean treatment may need to be more individualised.

Understanding Complicated UTIs

A complicated UTI simply means there are additional factors that may make infection harder to treat or more likely to return.

The factors that can make a UTI more complex include:

Structural or functional issues

• Kidney stones
• Narrowing ( strictures) in the urinary tract
• Blockages affecting urine flow
• Difficulty emptying bladder fully

Conditions that can affect the immune system

For example:

• Diabetes
• Cancer treatment
• Use of medication that reduces the activity of the immune system ( immunosuppressive medication)

Antibiotic- resistant bacteria

Sometimes the bacteria causing the infection are resistant to commonly used antibiotics. In these cases, treatment is usually guided by urine culture results.

Medical devices

• Urinary catheters
• Stents
• Reconstructed urinary system ( such as a urinary diversion or bladder reconstruction)

Other contributing factors

• Recent urinary surgery or investigations
• Neurological conditions affecting bladder function
• A history of recurrent UTIs

Management of complicated UTIs often involves closer follow – up and a more detailed treatment plan.

Understanding the difference between Recurrent and Chronic UTIs

These terms describe different patterns of symptoms.

Recurrent UTIs – what tends to happen?

Recurrent UTIs are defined as:

• Two infections in six months, or
• Three infections in one year

With recurrent UTIs :

• Each infection usually clears with treatment
• You feel well in between episodes
• A new infection develops later

Recurrent infections may involve:

• A different bacteria
• The same bacteria returning
• Or occasionally a relapse if the original infection was not fully cleared.

Certain triggers can increase the likelihood of repeated infection, including sexual activity, hormonal changes and incomplete bladder emptying. You can read more about these in the Risk and Trigger Factors  section below.

If this reflects your experience, our guide explores ‘Coping with recurrent UTIs’   explores prevention and longer term management.

Chronic or persistent UTIs – what may be happening?

Some people experience symptoms that :

• Do not fully settle, especially pain assessment and treatment should be individualised.
• Relief from treatment may be short -lived
• Return very quickly after treatment
• Continue despite negative test results

Possible contributing factors may include:

• Low level or difficult to detect infection
• Bacteria persisting within the layers of the bladder wall
• Infection that has not fully resolved despite treatment
• Frequent courses of antibiotics over a long time
• Ongoing bladder inflammation
• Increased nerve pain after repeated infections
• Hormonal changes
• Over lapping conditions such as pelvic floor muscle dysfunction or overactive bladder

This pattern is sometimes described as chronic or persistent UTI. More than one of these factors can be present at the same time, which is why assessment and treatment often need to be individualised.

Research in this area continues to evolve, and terminology is not yet used across all settings. There is growing discussion among healthcare professionals and people with lived experience to improve understanding and develop clearer guidance. The Chronic and Recurrent UTI Priority Setting Partnership, supported by The Urology Foundation and partners, have worked with the James Lind Alliance to identify shared research priorities that matter most to patients and clinicians https://amr-action-uk.org/psp/

We are developing further downloadable resources on chronic and persistent UTI symptoms. In the meantime, you can find more detailed information in our dedicated chronic UTI section.

Causes Of UTIs

Bacterial Infection

Most UTIs are caused by bacteria entering and multiplying in the urinary tract.

E. coli

The most common cause is Escherichia coli ( E. coli) – a bacteria that normally lives in the bowel but can cause infection if it enters then urinary tract.

Other bacteria

Other organisms such as  Staphylococcus saprophyticus, Proteus mirabilis, Klebsiella pneumoniae, and others can also cause UTIs.

The specific bacteria identified will influence which antibiotic is most appropriate.

Fungal infection ( less common)

Occasionally, UTIs may be caused by yeast, most commonly Candid species. This is  more likely in people who use catheters, have diabetes, or have recently taken prolonged courses of antibiotics.

In may cases, yeast found in a urine sample does not cause symptoms and may not require treatment.

Risk and Trigger Factors

These factors do not cause infection on their own, but they can increase vulnerability.

Certain factors can increase the likelihood of developing a UTI:

• Low fluid intake – concentrated urine may irritate the bladder and allow bacteria to multiply more easily
• Sexual activity – sex can introduce bacteria into the urethra , particularly those more prone to UTIs
• Female anatomy ( shorter urethra) – a shorter urethra means bacteria have a shorter distance to travel to reach the bladder
• Bowel issues leading to bacterial transfer – constipation or diarrhoea can increase the chance of bacteria transferring from the bowel to the urethra
• Urinary catheters, fixed or intermittent – catheters provide a direct route for bacteria to enter the bladder. The risk is reduced in those who use clean intermittent self catheterisation.
• Menopause and reduced oestrogen levels – lower oestrogen can affect the protective lining of the bladder and vagina, making infection more likely
• Incomplete bladder emptying ( urinary retention) – urine left in the bladder gives bacteria more time to grow.
• System blockages can prevent urine from flowing freely such as with kidney stones or an enlarged prostate.
• Reconstructed urinary systems ( stoma or neobladder) – surgical changes to the urinary tract can alter how urine drains and how bacteria behaves.
• Conditions that affect the immune system – some health conditions or treatments can make it harder for the body to clear infection
• Diabetes -higher blood glucose levels can increase infection risk and affect immune response to the infection.
• A family tendency – UTIs can sometimes run in families, possibly due to inherited differences in how the body responds to bacteria.

UTIs and Menopause

Hormonal changes during peri – menopause and menopause can affect the lining of the bladder, urethra and vagina.

Reduced oestrogen levels may:

• Thin and dry the vaginal and urethral tissues
• Reduce the protective lactobacillus bacteria in the vagina
• Increase the vaginal pH ( reduce the beneficial natural acidity)
• Make it easier for bacteria to attach and grow
• Contribute to ongoing or recurrent UTI symptoms

For many women, local ( vaginal) oestrogen can help restore this protective environment

For more information on bladder and vaginal health during the menopause, see our webinar video below. Our UTI Nurse Helen Lake was joined by Kathy Abernethy, BMS Menopause Specialist and Author.

Urinary Tract Infections (UTI) symptoms

Symptoms of simple or uncomplicated UTIs 

• Urgency to pass pass urine
• Burning sensation during urination
• Irritated / stinging sensation in urethra (water pipe)
• Difficulty / unable to pass urine
• Frequent trips to the toilet with small amounts of urine passed
• Frequent trips to toilet through the night (nocturia)
• Cloudy or strongly smelling urine
• Blood in urine (haematuria)
• Hurts to have sex
• Pain or heavy feeling in pelvic region and/or lower part of your tummy
• Urine leakage
• Back pain

Symptoms of Chronic or Persistent UTIs

Some people experience urinary symptoms that do not fully settle between ‘episodes’, or then return very quickly or resurge after treatment.

In addition to the common symptoms listed above , this pattern may include:

• Ongoing burning, urinary urgency or bladder discomfort
• Bladder pain and pressure
• Pain that flares repeatedly
• Symptoms that persist despite negative urine tests
• Short lived improvement with antibiotics

This experience can feel very different from recurrent UTIs, where people are symptom free between infections.

Understanding of persistent urinary symptoms is still developing, and definitions can vary between clinicians and settings. What matters most is that ongoing symptoms are taken seriously and explored properly, with appropriate referral to specialist care.

When infection becomes serious ( Sepsis)

In a small number of cases, a urinary tract infection can spread beyond the bladder and kidneys and trigger a serious ‘whole body’ or systemic response known as sepsis.

Sepsis is uncommon, but it is important to recognise the signs early.

Seek urgent medical advice if you or someone you are caring for has a UTI and goes on to develop:

• A high fever or a very low temperature
• Shivering, chills or feeling very unwell
• Severe back or side pain
• Fast breathing or breathlessness
• A fast heart beat
• Confusion, drowsiness or difficulty staying awake
• Pale, mottled or unusually cold skin

If you or someone seems seriously unwell, call 999 or seek emergency medical care immediately.

Most UTIs do not lead to sepsis. However, knowing the warning signs helps you act quickly if symptoms change.

https://www.nhs.uk/conditions/sepsis

Urinary Tract Infections (UTI) diagnosis

Diagnosing a UTI: Understanding the process and its challenges

If you suspect you have a urinary tract infection (UTI), it’s important to get medical advice from your GP or pharmacist so you can begin the right treatment if necessary. Here’s how UTIs are typically diagnosed and some insights into the limitations of these methods:

Common diagnostic tests for UTIs

Rapid Dipstick Strip Test

This test can be performed quickly at your surgery or can be done at home. It checks for signs of infection, such as nitrites and leukocytes (white blood cells), in your urine.

Limitations: While convenient, dipstick tests are not foolproof. They can miss infections, especially if the bacteria causing the UTI don’t convert nitrate to nitrite.

Urine Culture

This standard testing has remained unchanged for decades. The test involves sending a urine sample to a lab where it’s tested to identify the type of bacteria and determine the best antibiotic for treatment. This process can take 24-48 hours.

Challenges – Despite its widespread use since the 1950s, urine cultures can fail to grow bacteria under certain conditions, leading to false negatives.

Addressing Diagnostic Challenges

Despite these methods being standard, they are not always accurate, and there can be instances of negative UTI test results even when an infection is present, and symptoms are experienced. This has prompted a change in how UTIs can be managed:

Updated Guidelines – Recent guidelines, such as those from NICE (National Institute for Health and Care Excellence), now advise that treatment for UTIs can be initiated based on symptoms alone, especially if you have two or more typical symptoms of a UTI (see section above on symptoms). This approach helps to start treatment sooner, even before test results are available.

Easier Access to Treatment – These guidelines have been adapted into practice, allowing patients to access antibiotics directly from a pharmacy without a prescription, provided they meet certain criteria and symptoms. Your GP or Nurse Practitioner or Pharmacist will ask you a series of questions to ensure you are accessing the right treatment.

These updates aim to reduce delays in treatment and address the limitations of standard testing, ensuring that those who experience UTIs can receive timely and effective care.

What This Means for You 

• If you’re experiencing symptoms of a UTI, such as a burning sensation when urinating, an urgent need to urinate frequently, or pain in the lower abdomen, you don’t necessarily have to wait for test results before starting treatment. Discuss your symptoms with your pharmacist to determine the best course of action. You may be able to access a three-day course of antibiotics from your pharmacist or from an online pharmacy where you will need to answer a few questions on your symptoms and medical history. Please note that a three day course of antibiotics is not suitable or effective for everyone.
• Not all urinary symptoms require antibiotics. Taking antibiotics when they aren’t necessary can lead to changes in your gut bacteria, making some bacteria resistant to treatment. This can make future urinary tract infections (UTIs) more challenging to treat. Some UTIs do resolve on their own and can be managed with increased fluid intake and across the counter pain relief such as paracetamol or ibuprofen. Over-the-counter preparations that change the PH of your urine can help with stinging and burning symptoms’.
• It is important to remember that accessing a 3-day course of antibiotics applies to uncomplicated UTIs only, and if you have additional health concerns or this is a recurrent UTI you should see your GP for a more in-depth assessment as you may need a longer course of antibiotics which would need to be prescribed.
• If you see your GP, they may give you back up or ‘self-start’ antibiotics to start taking if your symptoms do not improve within 48 hours (or they worsen)
• Common side effects from antibiotics include yeast infections, rashes, vomiting, and diarrhoea. If you experience any of these side effects, it’s wise to consult with your GP or pharmacist.

Understanding Asymptomatic Bacteriuria

What is Asymptomatic Bacteriuria?

This happens when bacteria are present in your urine but are not causing you any symptoms of a UTI. This means you may not be experiencing the typical symptoms of burning, urgency, or frequency in urination.

Should I be concerned?

In most cases, asymptomatic bacteriuria does not require treatment with antibiotics. It is becoming increasingly understood that it may be part of your body’s natural bladder environment, where different bacteria can live without causing harm. This is part of the ‘Bladder Biome’ Traditionally the bladder was thought to be sterile, but recently research has shown that even healthy bladders can contain a complex mix of various bacteria.

When is treatment necessary?

Treatment is generally not needed unless.

• You are pregnant to avoid any potential complications
• You are undergoing a procedure on the urinary system which may disrupt the lining of the bladder and potentially lead to an active infection.
• You have other medical conditions which put you at higher risk of infection such as any impairment to your immune system

Remember

Asymptomatic bacteriuria is a common condition and is typically not a cause for concern.

However, it’s important to be on the look out for any symptoms suggestive of an active UTI and seek advice from your GP.

Understanding why your prescription may be changed/or is longer than three days

• If a urine sample has been sent off at your surgery the results may later indicate a change of antibiotic.
• If you are pregnant antibiotics will be given (at least 7 days) and ideally a urine sent off for culture – antibiotics can be changed according to the result when available.
• If you are male antibiotics will be given (at least 7 days) and ideally a urine sent off for culture – antibiotics can be changed according to the result.
• If you are Trans antibiotic treatment will be dependent upon gender reassignment surgery and structural changes made to the urethra.

Seeing your GP for complex, recurrent, and persistent symptoms

Your GP will review your symptoms and medical history. A physical examination may also be conducted as this can identify any obvious causes or complicating factors such as a vaginal prolapse in females, or an enlarged prostate in males.

If you are experiencing recurrent UTIs it’s important to ask your GP to look back in your records for your UTI and symptom history, especially if you are seeing a different doctor. Previous urine results and previously prescribed antibiotics can be checked. This helps ensure the antibiotic is effective and reduces the risk of resistance.

Despite concerns about antibiotic resistance on a global level, sufferers of recurrent infection often have little choice but to rely on these medications to manage symptoms effectively. Work is being done to find antibiotic alternatives [see section on Methenamine Hippurate and UTI Vaccines].

Tests

• A urine sample is typically tested (urinalysis) to detect signs of infection and inflammation, such as the presence of white blood cells, red blood cells, or bacteria.
• A urine culture may be done to identify the specific type of bacteria causing the infection.
• Although we have outlined the limitations of such testing in many cases, having a record of which bacteria has caused your infections will be very useful in establishing patterns and getting you on the correct treatment.

Further Testing – could it be something else?

If you are experiencing recurrent or chronic UTIs, it is important that a more detailed evaluation is carried out. Your GP should refer you to the urology department where investigations can include an ultrasound scan, cystoscopy (telescopic examination of the bladder), or a CT scan to rule out any potential underlying cause to the infections. It is really important to note that UTIs and bladder cancer can have similar symptoms so a persistent UTI and blood in urine should always be checked out.

Handling a Negative Test Result

Persistent Symptoms with Negative Urine Culture:

Sometimes, symptoms typical of a UTI persist even though the urine culture comes back negative. This situation can be frustrating and confusing for both the patient and the doctor. Patients can often feel like they are not believed or not being listened to.

Possible Explanations:

Sample issues:

• Antibiotic influence: If antibiotics were taken before collecting the urine sample, they could suppress the growth of bacteria, leading to a negative result.
• Dilution from hydration: Excessive fluid intake can dilute your urine, making it harder to detect bacteria.
• The ability of standard testing is limited.

Embedded infections – understanding what may be happening.

Research suggests that in some cases, bacteria may persist within the bladder lining or form ‘protective communities’ (sometimes called biofilms). This is sometimes described as an embedded infection, and some people have been told this is a possible explanation for their symptoms and why urine cultures can come back as negative.

For others, symptoms may be linked to ongoing inflammation or increased sensitivity of the bladder following infection. In many cases, more than one factor may be involved.

Why is this still uncertain?

Understanding in this area is continuing to develop, and ongoing research is expected to lead to clearer definitions and treatment pathways.

What You Can Do

If you frequently receive negative test results despite having UTI-like symptoms, discuss these possibilities with your GP.

• Further diagnostic testing: Additional tests, such as a cystoscopy (telescopic bladder examination) or more sensitive microbial testing, might be necessary to explore other causes or detect difficult-to-capture bacteria.
• Specialist consultation: Seeing a specialist, such as a Urologist or a Gynaecologist, can provide more targeted insight into complex cases where standard tests fail to explain the symptoms.

Urinary Tract Infections (UTI) treatment

Treating UTIs

Every individual experience urinary tract infection (UTIs) differently, influenced by unique bodily responses, lifestyle factors, and underlying health conditions. Recognising this diversity is crucial, as it shapes the approach to effectively treating and managing UTIs.

It’s important to try to take proactive steps in managing your health where you can. By actively understanding your symptoms and triggers, you can actively participate in decisions about your treatment options and preventative strategies.

Point of access care of UTIs can vary widely and there can be a lack of joined up thinking and different interpretations of the guidelines when it comes to UTI care. We hope that these resources can enable you to understand more about available treatments and steps you can take to try to prevent future infections, manage symptoms effectively, and navigate the healthcare system more confidently.

If you recognise some of these symptoms and patterns of infections in yourself or someone you care for, it’s important that you speak with your GP who can refer you on to a specialist Urology centre for UTIs.

Managing recurrent urinary tract infections (UTIs) requires a layered approach, starting with practical self-care measures and progressing to more specialized treatments if needed. Our goal is to empower you with the information and resources needed to manage your condition effectively.

First-Line Advice – self-care and prevention

Hydration and bladder habits

• Stay hydrated: Drink plenty of fluids throughout the day to help flush bacteria from your urinary system.
• Complete bladder emptying: Take your time to empty your bladder fully, especially before and after sexual activity, to reduce the risk of bacteria build-up. The double void is a helpful strategy where you pass urine then wait, count to ten then try to pass urine again.

Dietary supplements: Evidence for common across the counter remedies

Vitamin C (ascorbic acid)

• Proposed to help prevent urinary tract infections by acidifying the urine. Bacteria that cause UTIs, like E. coli, often thrive in a neutral or slightly alkaline environment. By lowering the pH (increasing the acidity) of urine, vitamin C might inhibit the growth of these bacteria, making it harder for them to multiply and cause an infection.
• The effectiveness of vitamin C in acidifying the urine can vary greatly among individuals, depending on their metabolism and baseline urine pH.
• There is some evidence that vitamin C can help with certain bacteria like Escherichia Coli (Ecoli) and a study found it beneficial reducing UTIs in pregnancy, but more evidence is needed for the general population of UTI sufferers.
• A recent Cochrane report ( 2024) has concluded that cranberry preparations ‘probably’ help reduce UTIs in women with recurrent UTIs and children.
• While slightly more acidic urine can discourage some bacterial growth, extremely acidic urine might cause discomfort or other health issues like kidney stones, especially if consumed in high amounts over long periods.
• It is known to have a role in boosting the immune system and as an antioxidant Vitamin C protects and helps reduce inflammation.
• Anecdotal accounts suggest that Vitamin C may irritate the bladder so is not recommended in those who may have Interstitial cystitis or painful bladder syndrome.
• The evidence from the pregnancy study highlighted an daily intake of 100mg of ascorbic acid was beneficial but anecdotal evidence suggests a supplement between 500- 1000mg is often taken as a prevention strategy along with other measures.

Cranberry Preparations

• Cranberry products, particularly cranberry juice and capsules have been studied extensively for their potential to prevent urinary tract infections (UTIs).
• They cannot be taken if you are prescribed the blood thinner Warfarin.
• Cranberries contain compounds called proanthocyanidins (PACs) which are believed to prevent bacteria, especially E. coli, from adhering to the lining of the urinary tract. This anti-adhesion effect is thought to reduce the incidence of infections by preventing bacteria from establishing a foothold that could lead to infection.
• Some studies have shown that cranberry products can reduce the frequency of UTIs, particularly in women with recurrent infections. However, results are mixed. A significant number of systematic reviews and meta-analyses have concluded that while there is some evidence suggesting a preventive effect, it tends to be modest.
• Varied responses: The effectiveness of cranberry products may vary among different population groups. They tend to be more effective in some groups, such as younger women and those experiencing recurrent UTIs, compared to others like the elderly or those with neurogenic bladder or spinal cord injuries.
• Due to mixed evidence, cranberry products are not universally recommended in clinical guidelines as a primary method to prevent UTIs. However, they are often suggested as a complementary measure.

D Mannose

• D-Mannose is a simple sugar that is structurally related to glucose but is metabolized differently by the body. It is naturally found in small quantities in fruits like apples, oranges, and cranberries.
• D-Mannose works by inhibiting the adhesion of bacteria, particularly Escherichia coli (E. coli), to the walls of the urinary tract. E. coli is the most common cause of UTIs. The bacteria have hair-like structures called pili that allow them to attach to and invade the lining of the bladder and other parts of the urinary tract.
• D-Mannose binds to these pili, preventing the bacteria from sticking to the urinary tract cells. Instead, the bacteria remain suspended in the urine and are flushed out of the body during urination.
• A 2013 study published in the “World Journal of Urology” found that D-Mannose powder significantly reduced the risk of recurrent UTIs, and it was as effective as the antibiotic nitrofurantoin but with fewer side effects.
• D-Mannose is generally well-tolerated, with few reported side effects. The most common side effects include minor gastrointestinal symptoms such as bloating or diarrhoea.
• More research is needed to fully establish its role in UTI management and to determine the optimal dosage and duration of treatment.
• D- Mannose is available to buy across the counter but is generally quite expensive.
• The recommended dose is 2g daily either in tablet or powder form
• Update on D Mannose – A randomised Clinical Trial ‘ D Mannose for Prevention of Recurrent Urinary Tract Infection Among Women’ 2024, has just published its findings and conclusions. These broadly are that daily D Mannose did not reduce the proportion of women with recurrent UTI in primary care, who went on to experience a confirmed UTI. This may not be significant in a more complex group of patients such as those attending specialised hospital based clinics. (secondary care)

Vaginal Oestrogen

• For women in peri or post menopause, vaginal oestrogen therapy may help restore the natural flora of the vagina and reduce the risk of UTIs.
• Topical vaginal oestrogens in cream or pessary form are available on prescription from your GP.
• They can also be bought across the counter at your local pharmacy, although you have to fit certain criteria and it can be expensive.

Probiotics

• Probiotics are live microorganisms, primarily bacteria and yeasts, which are similar to beneficial microorganisms found naturally in the human gut. They are often referred to as “good” or “helpful” bacteria because they help maintain the health of the gut microbiome.
• Probiotics are available in several forms including capsules, tablets, powders, and foods. They are also incorporated into certain yogurts, fermented foods like kimchi and sauerkraut, and beverages like kefir.
• Probiotics can help prevent recurrent urinary tract infections (UTIs) by restoring the balance of good bacteria in the body, particularly in the urinary tract and vagina. This helps inhibit the growth of harmful bacteria that can cause infections. Specifically, probiotics like Lactobacillus strains are often recommended because they can colonise the vagina and reduce the risk of pathogen overgrowth.
• Evidence is mixed. Deemed generally safe in studies, effectiveness can depend on strains and dosage. Research is ongoing but the evidence is not yet strong enough on dosage and methods of taking it, such as in oral form or vaginally.
• Current advice is that probiotics can be tried in tandem with other supportive measures, but to take advice on strains and dosage.

Second-Line Strategies – antibiotics and current alternatives

Preventative antibiotics

• Low-Dose Antibiotics – If non-antibiotic measures are insufficient, and you are experiencing recurrent UTIs, a low-dose antibiotic regimen might be prescribed for preventative purposes.
• Self-start therapy – For known triggers such as sexual activity, a ‘self-start’ prescription may be provided, allowing you to take antibiotics as soon as symptoms appear.

Antibiotic alternatives

Methenamine Hippurate 

• Methenamine Hippurate, commonly known by its brand name, is a medication used primarily as a preventive measure against recurrent UTI and is classed as a urinary antiseptic.
• The medicine works by turning into formaldehyde when it reaches your urine. Formaldehyde is a strong antibacterial agent that can kill bacteria directly in the urine.
• The key to its effectiveness is the acidity of the urine – it needs to be acidic for the medication to turn into formaldehyde.
• Some Urologists suggest taking vitamin C along with Methenamine Hippurate to help keep urine acidic.
• It is not used for acute UTIs and is taken as a ‘preventer’.
• If you develop a UTI when taking Methenamine Hippurate, the advice is to keep taking the medication along with any antibiotics prescribed until the course is completed then continue on Methenamine Hippurate.
• Recent research has proven that Methenamine Hippurate is as effective as taking low dose daily antibiotics without the problem of antibiotic resistance.
• The dose is 1g twice daily.

Different Antibiotic regimens for treating UTIs

Uncomplicated UTIs

Simple and uncomplicated UTIs can sometimes resolve with increased fluids and over the counter pain medication. However, if your symptoms persist you can now access a short course of antibiotics (three days) from your local pharmacist or your GP/ online pharmacist.

If you are experiencing two or more symptoms of UTI such as pain/stinging on passing urine, frequency, and urgent feeling to pass urine you can receive antibiotics as long as you meet the criteria for a short course of antibiotics.

Treatments-care tips: Increasing fluid intake. using over-the-counter pain relievers and preparations to change the PH of your urine will help relieve your symptoms. It’s tempting to reduce your fluids to avoid painful urination, but this is the most effective way of getting the bacteria out of your bladder.

Frequent UTIs

If you are experiencing frequent UTIs or have identified a certain trigger to a UTI. The following is a useful guide to how antibiotics can be prescribed in a different, more individual way for your needs.

Targeted Antibiotic Use

Tailored Dosage: Antibiotics may be necessary, but the type and duration are chosen based on your specific health situation and past medical history.

• Post-Coital Prophylaxis: If your UTIs are related to sexual activity, a single dose of antibiotics after intercourse might be recommended.
• Daily low dose antibiotic may be recommended for a lengthy period 6-12 months.
• Longer course of antibiotics can be indicated 7-10 days.
• Self-start antibiotics – this is a good option for you if you recognise the start of a UTI in yourself. This option is useful for holidays as a standby.
• Explore current alternatives to antibiotics – Methenamine Hippurate.
• Vaginal Oestrogen: For peri and postmenopausal women, vaginal oestrogen therapy may help restore the natural flora of the vagina and reduce the risk of UTIs.

Chronic UTIs

If you have UTIs that either don’t fully go away after treatment or keep returning very frequently this is termed chronic UTIs. These may require a longer-term antibiotic treatment plan to manage the infection and prevent new flare-ups. The persistence of chronic UTIs can be due to a variety of factors, including possible bacterial biofilms that protect bacteria from antibiotics, incomplete antibiotic penetration, or immune system factors. Ongoing research aims to better understand these mechanisms to develop more effective treatments.

• It’s sometimes necessary to have extended antibiotic therapy sometimes for a few months to treat embedded infection.
• Self-start antibiotics.
• Explore current alternatives to antibiotics – Methenamine Hippurate.
• If these measures fail, you will benefit from a referral to Urology who can offer more treatment options depending on your individual symptoms.

Advanced treatments: specialised urology care

• UTI vaccines: available from some specialised centres and private clinics.
• Bladder instillations: for severe cases, medication (Sodium Hyaluronate) may be instilled directly into the bladder via a self-administered catheter to try to restore the protective lining of the bladder.
• Antibiotic instillations: similar to bladder instillations but specifically involves the introduction of antibiotics (Gentamicin) into the bladder with a catheter to target persistent infections directly.
• Biofilm disruptors: some people come across information about ‘biofilm disruptors’ or supplements designed to break down bacteria. These are an area of ongoing research, but there is currently limited high quality evidence for their routine use in managing chronic UTI.

If you are considering any supplements, it is always important to discuss this with your GP, particularly if you are taking other medications.

NICE Guideline on UTIs

For information from the National Institute for Health and Care Excellence on treatment for UTIs, see their website.

Clinical trials

For general information about clinical trials, including what they are and advice on how to find a clinical trial, click here.

Living with and Beyond UTIs

Experiencing a urinary tract infection (UTI) can be distressing, but understanding how to manage and potentially overcome this condition can empower you. As we look to the future, new treatments are on the horizon, and ongoing research continues to offer hope. Here’s how you can approach life after UTIs with optimism and proactive strategies.

Emerging areas and therapies

Microbiome analysis: Understanding the role of the bladder and gut microbiomes in health and disease could lead to targeted probiotic treatments to restore balance and prevent UTIs.

Vaccine development: Research into vaccines to prevent recurrent UTIs is promising. These vaccines aim to enhance the body’s natural defences potentially reducing the incidence of infections. They are currently used ‘off license’ and are not available on the NHS. They are available from some private clinics and specialist urology centres under strict criteria.

Phage therapy: Under research – persistent or recurrent urinary tract infections (UTIs) often occur when antibiotics fail to completely eliminate pathogenic bacteria. These bacteria can hide within biofilms deep within the bladder’s cell layers, making them highly resistant to both antibiotics and the immune system.

Bacteriophages are viruses that infect and kill bacteria and can penetrate biofilms and reach hidden bacteria They can be used alongside antibiotics but research is currently looking at using ‘phages’ on their own.

Genetic testing: Advances in genetic testing offer more precise diagnoses, helping to tailor treatments based on individual susceptibility to UTIs.

The role of nutrition in enhancing immunity

Dietary adjustments

• Probiotics: Incorporating fermented foods and probiotic supplements can support the health of your gut and urinary tract microbiomes, enhancing your body’s natural defences.
• Cranberries and D-Mannose: These have been studied for their potential to prevent bacterial adhesion to the urinary tract, reducing the likelihood of infection recurrence.
• Vitamin C: Increasing your intake of vitamin C-rich foods may boost immune function and increase the acidity of urine, creating an environment less favourable for bacteria.
• Hydration: Staying well-hydrated is crucial. Water helps to dilute urine and ensure regular bladder emptying, flushing out pathogens before they can establish an infection.

Living with and beyond

“Embracing Healthy Habits for Urinary Health”

“Maintaining good urinary health is a vital part of our overall well-being, and there are many proactive steps we can take to support this. Adopting a few positive habits can significantly reduce the risk of urinary tract infections (UTIs) and enhance our comfort and health. Here are some gentle suggestions for incorporating beneficial practices into your daily routine:

Stay hydrated: Drinking plenty of water helps flush bacteria from the urinary tract, keeping it clean and functioning smoothly.

Wiping from front to back following urination can greatly minimise the transfer of bacteria to the urinary tract.

Urinate when needed: Avoid holding in urine for too long. Going to the bathroom when you feel the urge ensures that bacteria don’t have the chance to settle and multiply. Try the double void technique. Pass urine, wait and count to 10, pass urine again.

Mindful bathroom habits: Changing sanitary/continence products can help reduce the risk of bacteria entering the urethra.

If you are male pay attention to your urinary flow and see your GP if you feel that you are not emptying your bladder, an important risk factor for UTIs in men.

Barrier method of contraception: use of the diaphragm cap with spermicide can be an extra risk if you are prone to UTIs due to changes to the vaginal flora and possible irritation to the vagina and urethra.

Use of condoms with a male partner can help reduce exposure to bacteria. As above avoiding spermicide use. Condoms can sometimes cause irritation to your vagina and urethral tissues if this is the case you could try extra lubrication.

Consider your diet: Incorporating foods with high water content and possibly reducing irritants like caffeine and spicy foods can support urinary health.

Looking After Your Bladder Health: Dietary Tips and Tricks

Water and juice intake – aim for 1.5 – 2 litres daily depending on your level of activity.

Many fruit and herb teas are widely available.

Avoid caffeinated drinks: remember de caffeinated coffee still contains caffeine. Switch to chicory root coffee, which tastes similar to coffee but is naturally caffeine-free, helping to reduce bladder irritation.

Swap out alcoholic beverages: opt for non-alcoholic alternatives like ginger tea or ginger water, which can soothe the stomach and don’t dehydrate the body. Ginger is known to have anti-inflammatory and anti-oxidant properties.

Many low or non-alcoholic alternatives are widely available now, which makes it easier when you are out socialising.

Cranberries – how do you take yours?

Cranberry juice:

• Pros: Widely available and may offer immediate relief for UTI symptoms by flushing the urinary tract when consumed in large amounts.
• Cons: Many commercial cranberry juices are diluted with other juices and contain high amounts of added sugars, which can counteract the health benefits and contribute to other health issues like weight gain or diabetes.

Cranberry capsules or powders:

• Pros: These supplements usually provide a concentrated form of cranberries without the added sugars found in juice. They’re also standardized, meaning they contain specific amounts of the active ingredients (like proanthocyanidins or PACs) known to inhibit bacteria from adhering to the bladder wall.
• Cons: Supplements are not regulated as strictly as pharmaceuticals, so quality can vary between brands. It’s important to choose products from reputable manufacturers who provide information about PAC content.

Whole cranberries or dried cranberries:

• Pros: Eating whole cranberries or dried cranberries (with no added sugar) can be a healthy way to ingest PACs naturally. Whole cranberries also contain other beneficial nutrients and fibre.
• Cons: Dried cranberries often contain added sugar, similar to juices, which can negate some health benefits. Whole cranberries are tart and may be less palatable for some people to take.

Anti-Inflammatory Foods

Eat a rainbow: incorporate a variety of colourful fruits and vegetables, which are high in antioxidants and can reduce inflammation. Think blueberries, spinach, bell peppers, and carrots.

Include healthy fats: add pumpkin seeds, nuts, and oily fish (like salmon or mackerel) to your diet. These foods are rich in omega-3 fatty acids, which are known for their anti-inflammatory properties.

Foods supporting immunity and bladder health

High-fibre foods: incorporate a diet rich in fibre to help soften stools and promote regular bowel movements. Foods high in fibre include fruits, vegetables, whole grains, and legumes.

Fermented foods: include sauerkraut, kimchi, and kefir in your diet. These foods are not only great for gut health but can also support the urinary tract due to their probiotic content.

Antibacterial and antimicrobial foods: consume raw garlic, and herbs like oregano, thyme, and rosemary. These have natural antibacterial and antimicrobial properties that can help maintain a healthy urinary tract.

Avoid certain foods: reduce salt intake. High salt intake can be dehydrating and may lead to water retention, putting pressure on the bladder. Try to limit salty snacks and opt for fresher alternatives.

Balanced diet: ensure a balanced diet rich in vegetables, fruits, whole grains, and lean proteins to supply all necessary nutrients for immune health.

Vitamins and minerals: focus on vitamins C, D, and zinc supplements, which are crucial for immune defence. Vitamin C can be found in citrus fruits, bell peppers, and strawberries; vitamin D can be fortified in foods like milk or taken as a supplement; zinc is abundant in meat, shellfish, legumes, and seeds.

Remember, it’s always a good idea to consult with your GP or health care professional before starting new supplements, especially if you have pre-existing health conditions. Consider talking to a BANT registered nutritional therapist for individual advice.

More information on UTIs and nutrition

For more information on UTIs and nutrition, see our recorded webinar below. Our UTI Information Nurse, Helen Lake, spoke to special guest Mary Cotter about how nutrition can play a role in bladder health. She gave tips and information on changes to your diet that might support a health bladder. For more details about Mary and her work, visit HERE.