How to know if u have an urinary tract infection?

UTI. The surest way to know if you have a urinary tract infection is to have your urine checked. There are urine dipsticks that can detect infection. The symptoms of a UTI can include painful urination, feeling like you have to urinate often, but only passing a very small amount of urine, and urgently feeling like you have to urinate. It can get worse from there.