Urinary tract infections (UTIs) and dementia

Urinary tract infections (UTIs) are a type of infection that are common among older people. Women are more commonly affected by them than men. If a person with a memory impairment or dementia has a urinary tract infection, this can cause sudden and severe confusion known as ‘delirium’. If the person has a sudden and unexplained change in their behaviour, such as increased confusion, agitation, or withdrawal, this may be because of a UTI.

This factsheet explains what a UTI is, the different types of UTIs, their symptoms and treatments, and gives tips on how they may be prevented.