Women who are prone to UTIs can often reduce the risk of these occurring by taking simple precautions eg maintaining a high fluid intake, emptying the bladder regularly – especially after intercourse, avoiding things which might upset the normal vaginal bacteria and correct toileting technique and hygiene.
Cranberry juice or capsules and even lactobacillus-containing yoghurts or drinks may help but the evidence is weak. In older, post-menopausal women topical oestrogen replacement therapy may be indicated.