Do I definitely need antibiotics?
Not always. A proportion of mild bladder infections settle on fluids and pain relief alone, and delayed prescribing — holding a prescription for 48 hours to see whether things improve — is a reasonable option for mild symptoms in an otherwise healthy woman. But this is a genuine bacterial infection, symptoms are unpleasant, and there is a real risk of it ascending to the kidney, so treatment is usually the right call.
Why do I keep getting them?
Most often for a specific and identifiable reason: sexual activity, the menopause, incomplete bladder emptying, constipation, or a contraceptive method. Recurrent UTI is a problem to solve rather than a run of bad luck, and the solution frequently is not more antibiotics — vaginal oestrogen after the menopause, or a change of contraception, resolves a great many.
Does cranberry juice work?
The evidence is weak and inconsistent. Cranberry capsules or D-mannose are unlikely to do harm, and if you find they help then there is no reason to stop. They are not a treatment for an established infection.
Can I get antibiotics without being tested?
In a woman under 65 with clear, typical symptoms and nothing complicating the picture, yes — that is standard practice and it is what current guidance recommends. Men, pregnant women, children, recurrent cases and treatment failures should all have a urine sample cultured.
Is a UTI sexually transmitted?
No. Sex can trigger one by moving your own bowel bacteria to the urethra, but nothing is being passed from a partner and partners do not need treatment. That said, chlamydia and gonorrhoea cause very similar symptoms, so where there is any risk of exposure, testing for those is sensible.
Why does my urine test keep coming back negative when I feel awful?
Persistent bladder symptoms with repeatedly negative cultures may be interstitial cystitis, a non-infective inflammatory condition of the bladder that is often mistaken for recurrent UTI for years. It needs a different approach entirely, and repeated antibiotics will not help.
Should my partner be treated?
No, unless they have symptoms themselves. UTIs are not passed between partners.
I'm caring for an older relative who seems confused — is it a UTI?
Possibly, but treat that assumption with caution. Bacteria in the urine are extremely common in older people without causing illness, and a positive dipstick does not prove a UTI is behind the confusion. New confusion in an older person needs a proper assessment for all its possible causes — not simply a course of antibiotics.