UTIs in Women: Causes, Symptoms and Prevention
Urinary tract infections are among the most common infections treated in the UK, and women are far more affected than men. The discomfort of a burning sensation when you pass urine, the constant need to go, and the worry that it might reach the kidneys are all familiar to many women. The good news is that most UTIs are simple to treat when caught early. This guide explains why they happen, how to recognise them and what actually prevents them.
Why women are affected more
The female urethra is short and sits close to the anus and the vagina, which gives bacteria a short, easy route into the bladder. E. coli from the bowel causes around eight in ten UTIs. Everyday events such as sex, wiping, using some hygiene products or simply having a period can move bacteria to the wrong place. Pregnancy and the menopause also change the balance of the area and can make infections more likely.
Common causes and triggers
- Sexual activity, especially with a new partner or after a gap
- Holding urine in for long periods or not emptying the bladder fully
- Dehydration, which means less urine to flush bacteria away
- Perfumed soaps, bubble bath, sprays or douching that irritate the area
- Constipation, which presses on the bladder and can prevent full emptying
Recognising the symptoms
| Lower UTI (bladder) | Upper UTI (kidneys) |
|---|---|
| Burning or stinging when you pass urine | High temperature, fever, chills or shaking |
| Needing to pee suddenly and often | Pain in your side, back or under the ribs |
| Urine that looks cloudy, dark or smells strong | Feeling sick or being sick |
| A feeling of not having fully emptied your bladder | Confusion, especially in older women |
Some women, particularly older women, only notice confusion or a general sense of being unwell. Blood in the urine should always be checked by a doctor, even if it settles.
When to see a GP
You should see a GP if your symptoms do not improve within two days, you are pregnant, you have blood in your urine, your temperature is high, or you have symptoms of an upper UTI. A short course of antibiotics is the standard treatment for a confirmed infection, and taking paracetamol or ibuprofen can help with pain and discomfort in the meantime. The NHS also runs a urinary tract infection advice line in some areas, which can arrange treatment without a face-to-face visit.
Self-care and prevention
Drinking plenty of water is the simplest step, because a good flow of dilute urine washes bacteria out. Passing urine after sex, wiping front to back, and avoiding perfumed products all make a difference. There is some evidence that D-mannose and cranberry products may help reduce repeat infections, but they are not a treatment for an active one. If you get them often, see the guide on preventing recurrent UTIs for a fuller plan.
What does not cause a UTI
A UTI is not caused by poor hygiene in the way many people assume, and it is not the same as thrush, even though both can cause discomfort. The two are often confused, so it is worth checking the differences between thrush and bacterial vaginosis before treating the wrong thing. Always check with a pharmacist or GP if you are unsure which infection you have.
Most UTIs are quickly sorted with early treatment. If you recognise the symptoms, see a professional promptly, and build simple habits that keep the area healthy, you will reduce both the misery and the frequency of these infections.