UTIs affect different parts of the urinary tract, including the bladder, urethra and kidneys
Common symptoms include pain when peeing, needing to pee more often, and cloudy urine
Children and older or frail people can show different symptoms
UTIs may be treated with antibiotics, though these aren't always needed
Some UTIs can become long-term (chronic) and harder to treat
About UTIs
Urinary tract infections (UTIs) affect different parts of the urinary system, and include cystitis (a bladder infection), urethritis (infection of the urethra), and kidney infection. They may be treated with antibiotics, though these aren't always needed, particularly for milder infections.
Common Symptoms
Symptoms of a UTI can include pain or a burning feeling when peeing, needing to pee more often than usual (including at night), a sudden or urgent need to pee, cloudy or bloody urine, lower tummy pain or pain in the back just under the ribs, a high temperature or feeling hot, cold and shivery, an unusually low temperature, or feeling tired or weak. Dark or strong-smelling urine on its own, without other symptoms, might simply be a sign you're not drinking enough water rather than an infection.
Symptoms in Children, and in Older or Frail People
In children, a UTI can also cause a high temperature, general unwellness (including being irritable or feeding poorly in babies), bedwetting or wetting themselves, or being sick. In older, frail people — particularly those with memory or concentration difficulties such as dementia — or people with a urinary catheter, a UTI can sometimes show up as new confusion or agitation, worse-than-usual incontinence, or new shivering.
Page last reviewed: 6 March 2024 · Next review due: 6 March 2027
UTIs · Getting Help
When to Get Help
? 5 min readReviewed: March 2024
Seeing a Pharmacist
If you're a woman or girl aged 16 to 64, and not pregnant or breastfeeding, and think you have a UTI, a pharmacist can offer the same medicines a GP could prescribe, along with advice or a referral for further help if needed.
?? Ask for an urgent GP appointment or call 111 if:
You (or your child, or someone you care for) may have a UTI and: you're 65 or older; your child is 15 or younger; you have a very high or low temperature, or are shivering; you're a man, or trans or non-binary and assigned male at birth; you have diabetes; symptoms get worse quickly or haven't improved within 48 hours of starting treatment; you keep getting UTIs (2 within 6 months, or 3 within 12); you use a catheter; you're pregnant; you have pain in the lower tummy or back; you have blood in your pee; or you have a weakened immune system. Some of these could point to a kidney infection, which can be serious if untreated, since it could lead to sepsis.
?? Call 999 or go to A&E now if:
You or your child are confused, drowsy, or having difficulty speaking. Do not drive yourself — ask someone to drive you, or call 999 for an ambulance, and bring any medicines you take with you.
Page last reviewed: 6 March 2024 · Next review due: 6 March 2027
UTIs · Treatment
Treating a UTI
? 5 min readReviewed: March 2024
Standard Treatment
A pharmacist or GP may arrange a urine test if they suspect a UTI, though this isn't always necessary. A GP may offer self-care advice and a painkiller, prescribe a short course of antibiotics, or, in milder cases, suggest waiting 48 hours to see if symptoms clear up on their own before starting antibiotics. It's important to complete the full course of any antibiotics prescribed, even once you start to feel better.
Recurrent and Chronic UTIs
If a UTI keeps coming back — twice within 6 months, or three times within 12 — a GP may prescribe a different antibiotic, a low-dose antibiotic taken for up to 6 months, an oestrogen-based vaginal treatment if you're perimenopausal or postmenopausal, or medicine specifically aimed at preventing recurrence, and may refer you to a specialist for further tests.
Sometimes symptoms persist despite treatment, and standard urine tests don't always detect an infection in these cases — this may point to a long-term (chronic) UTI, caused by bacteria embedded in the bladder lining, which can be harder to diagnose and treat, sometimes needing a longer course of antibiotics. If you've been treated for a UTI but symptoms haven't gone away, it's worth asking your GP for a referral to a specialist.
Easing Symptoms Yourself
Taking paracetamol (or liquid paracetamol for children) up to four times a day can help with pain and fever, and resting while drinking enough fluids to pass pale urine regularly can help too. It's best to avoid drinks that can irritate the bladder, such as fruit juice, coffee and alcohol. Cystitis sachets or cranberry products are sometimes used to help prevent UTIs, though there's no good evidence they ease symptoms once an infection has already started.
Page last reviewed: 6 March 2024 · Next review due: 6 March 2027
UTIs · Causes
What Causes UTIs
? 4 min readReviewed: March 2024
How Infections Happen
UTIs are usually caused by bacteria from stools entering the urinary tract through the urethra — the tube that carries urine out of the body. Because women have a shorter urethra than men, bacteria can reach the bladder or kidneys more easily, which is why UTIs are more common in women.
Things that raise the risk of bacteria reaching the bladder include pregnancy, wiping from back to front after using the toilet, conditions that block the urinary tract such as kidney stones, conditions making it harder to fully empty the bladder such as an enlarged prostate or constipation in children, using a urinary catheter, having a weakened immune system, having been through menopause, using spermicide, and not drinking enough fluids.
Page last reviewed: 6 March 2024 · Next review due: 6 March 2027
UTIs · Prevention
Preventing UTIs
? 5 min readReviewed: March 2024
Everyday Steps That Help
Wiping from front to back after using the toilet, keeping the genital area clean and dry, drinking plenty of fluids so you pee regularly and don't feel thirsty, washing around the vagina with water before and after sex, and peeing as soon as possible after sex can all help reduce the risk of a UTI. Changing nappies or incontinence pads promptly when soiled, and wearing cotton underwear, can help too.
It's best to avoid scented soap around the genital area, holding in urine when you need to go, rushing when you pee (aim to empty your bladder fully), tight underwear, too much alcohol, lots of sugary food or drinks, and condoms or diaphragms with spermicidal lube — a non-spermicidal lube or different contraception can be used instead.
If UTIs Keep Coming Back
For people who get recurrent bladder infections, there's some evidence that taking D-mannose (a sugar available as powder or tablets) or cranberry products daily may help. Speak to a doctor before taking either during pregnancy, be aware both can contain a fair amount of sugar, and avoid cranberry products if you're taking warfarin.
Page last reviewed: 6 March 2024 · Next review due: 6 March 2027