Why do I keep getting UTIs?

One UTI is unpleasant enough. When they keep coming back, they can start to shape the way you live.

You may find yourself worrying before sex, avoiding long journeys, drinking water constantly, or wondering whether every twinge means another infection is starting. It can feel especially frustrating if you have taken antibiotics, felt better for a while, and then the same symptoms seem to return.

Recurrent UTIs are common, particularly in women, but you should not feel expected to simply put up with them. When infections keep happening, it is worth looking at the timing, possible triggers and whether another factor may be making them more likely.

What counts as a recurrent UTI?

A UTI happens when bacteria enter the urinary tract and cause an infection. Most commonly, this affects the bladder. Typical symptoms include burning when you pass urine, needing to go more often, urgency, lower abdominal or pelvic discomfort, cloudy urine, strong-smelling urine, or blood in the urine.

Doctors usually describe recurrent UTIs as 2 or more UTIs within 6 months, or 3 or more within a year.

This helps your doctor work out whether you are having separate infections, or whether one infection may not have fully cleared.

Sometimes a UTI comes back because new bacteria enter the urinary tract after the previous infection has gone. This is called reinfection. Less commonly, the same infection persists or does not fully clear after treatment. Doctors sometimes call this relapse.

The difference can matter because it may change what your doctor checks and which prevention options are most appropriate.

Why are women more likely to get recurrent UTIs?

Women are more prone to UTIs partly because of anatomy. The urethra, which is the tube urine passes through, is shorter in women than in men. This makes it easier for bacteria from nearby skin or the bowel to reach the bladder.

But anatomy does not explain everything.

Recurrent UTIs can also link to sex, some types of contraception, menopause, constipation, incomplete bladder emptying, diabetes, pregnancy or urinary tract problems. Changes in the vaginal microbiome may also play a role.

After menopause, lower oestrogen levels can make the tissues around the vagina and urethra thinner, drier and more easily irritated. This can affect the local balance of bacteria and make recurrent UTIs more likely for some women.

This is why the most useful approach is often a personalised one. A woman whose UTIs mainly happen after sex may need a different plan from someone whose symptoms started after menopause, or someone who does not empty her bladder fully.

Could recurring UTI symptoms be caused by something else?

Sometimes, yes.

Many recurrent UTIs are uncomplicated, which means they keep coming back without a serious underlying cause. Even then, they can be painful, disruptive and exhausting to deal with.

But repeated symptoms can sometimes suggest that something else needs checking. This may include incomplete bladder emptying, kidney stones, diabetes, changes after menopause, a structural difference in the urinary tract, or an infection that has not cleared fully.

It is also important to confirm whether infection is definitely causing the symptoms. Some conditions can feel similar to a UTI, including vaginal irritation, sexually transmitted infections, bladder pain syndrome, pelvic floor problems or irritation from soaps and fragranced products.

This is where urine testing can help. If symptoms keep returning, a urine culture can confirm whether bacteria are present and show which antibiotics are most likely to work. It can also help avoid repeated antibiotic treatment when infection is not actually the cause.

Can recurrent UTIs cause long-term problems?

For most healthy women, recurrent lower UTIs do not usually cause long-term damage if doctors recognise and treat them properly.

That does not mean they are minor. Recurrent UTIs can affect sleep, sex, work, exercise, travel and confidence. Some people become anxious at the first hint of symptoms because they know how quickly a UTI can take over the day.

The situation becomes more concerning if infection spreads from the bladder to the kidneys. A kidney infection can make you feel very unwell and needs prompt medical treatment.

Repeated courses of antibiotics can also bring their own issues, including side effects, thrush, gut symptoms and antibiotic resistance. That is why it is worth confirming the diagnosis and thinking about prevention, rather than treating every episode in isolation.

What can help prevent recurrent UTIs?

Prevention depends on what seems to be triggering the infections.

For some people, simple habits may reduce the chance of another UTI. Drinking enough fluid, passing urine when you need to rather than holding on for long periods, and avoiding constipation can all help. If UTIs often happen after sex, passing urine afterwards may help some women.

It is also best to avoid douching or using harsh fragranced products around the vulva. These can irritate the area and may disrupt the normal balance of bacteria.

If you are peri-menopausal or post-menopausal, your doctor may discuss vaginal oestrogen, especially if you also have vaginal dryness, discomfort during sex, urinary urgency or irritation. This is a local treatment used in the vagina rather than standard HRT taken for whole-body menopause symptoms.

For some people, clinicians may consider non-antibiotic prevention such as methenamine hippurate. In other cases, they may discuss antibiotic prevention, either as a low-dose course for a period of time or as a single dose after a clear trigger, such as sex.

You should discuss these options with a healthcare professional. It is not a good idea to use leftover antibiotics or start antibiotics without advice, because the wrong treatment may not work and can contribute to antibiotic resistance.

When should I see a doctor about recurring UTIs?

You should speak to a GP if you are having 2 or more UTIs in 6 months, or 3 or more in a year.

It is also worth asking for medical advice if symptoms keep returning despite prevention measures, antibiotics are not helping, or you are unsure whether a UTI is definitely causing the symptoms.

Seek urgent medical advice through your GP, NHS 111 or urgent care if you have symptoms that could suggest a kidney infection or a more serious infection, including:

• Fever, chills or shaking
• Pain in your back or side
• Nausea or vomiting
• Feeling very unwell, weak or confused
• Blood in your urine
• UTI symptoms during pregnancy
• Symptoms in a man, child or someone with a weakened immune system

Blood in the urine can happen with a UTI, but a healthcare professional should still check it. This is especially important if the blood is visible, keeps happening, does not settle after treatment, or does not clearly link to infection.

Recurrent UTIs need a plan, not just another prescription

When UTIs keep coming back, it can feel as though you are stuck in the same loop: symptoms, antibiotics, temporary relief, then another infection.

A proper review can help break that cycle. That might mean checking urine cultures, looking at possible triggers, considering menopause-related changes or bladder emptying, and making sure another condition is not being mistaken for infection.

Many people do not need complex treatment. They do need someone to look at the pattern properly and build a plan around why the infections may be happening.

If UTIs keep returning, asking for help is sensible. Recurrent infections are common, but living around them should not become your normal.

About the author

Dr Nikki Ramskill is a General Practitioner specialising in women’s health, based in Milton Keynes and the founder of The Female Health Doctor Clinic. She supports women with PCOS, subfertility, premature ovarian insufficiency, menopause, period problems (including heavy periods), contraception, and hormone replacement therapy (HRT). She has over a decade of clinical experience providing personalised, comprehensive care for women across all life stages.