Urinary tract infections are fairly easy to diagnose. Here are some clues that you may have one.
If it hurts when you pee, almost like fire, you may have a urinary tract infection.
If your pee contains any blood, you may have a terrible urinary tract infection or something else...See your doctor immediately or go to the emergency room. This symptom of a urinary tract infection is actually the lining of your urethra shedding.
If you have a take home test that shows a positive result for a UTI, you very likely have a urinary tract infection. These tests check for nitrates that are emitted from the bacteria that causes most urinary tract infections.
If you have chronic cystitis and pain urinating, you probably have a urinary tract infection.