A UTI is a bacterial infection of the urinary tract, which is normally sterile. The most common bug to cause a UTI is Escherichia coli (E. coli), a bacteria that normally lives in the bowel. A variety of things can cause this bowel bacteria to climb up the urethra (the tube from the bladder to the outside world where you pee from). If E. coli or other bowel bacteria gets into your bladder, it can grow and wreak havoc.
I get UTIs all the time. Why does that happen?
Most people get UTIs rarely, if at all. Most often, UTIs are precipitated by bouts of frequent intercourse (we docs call it honeymoon cystitis.) If you get UTIs frequently, something else might be awry. See your doctor to make sure there’s no anatomical defect or health condition that predisposes you to UTIs, such congenital defects in the urinary tract or diabetes. If that’s ruled out, it may be that your sex life is the culprit. Certain sexual positions and behaviors can increase the risk of bacteria from the bowel making its way into the urinary tract. Do you notice that you only get UTIs when you’re in a relationship and having sex frequently? Do certain positions always result in UTIs? If so, you may want to take preventative measures to keep you from running to the potty all the time.