Looking for causes of uti, websites only say bacteria is the cause but not how. i read up on some uti and bladder infection causes and symptoms, and while my girlfriend and i are sexually active, we haven't had sex for almost 3 weeks for shes away at scho

Urinary : Urinary tract infections are very common in women due to their short urethra. It is most common when they are sexually active, or delay urination (such as with teachers) when they shouldn't have. Remember always urinate after sex first, then cuddle. Best wishes.

UTIs : Utis are caused by bacteria (usually from the rectum and colon) going into the urethra and infecting the bladder. They are much more common in females. If she is having symptoms she needs to get her urine checked. After having intercourse she needs to urinate immediately and drink plenty of fluids.