Blood clots don't always look worm-like in your pee. Most of the time, they look like small, reddish, or darkish chunks floating in otherwise normally colored urine. This is especially common if the clots are from menstruation or a minor injury to the pelvic area. Sometimes, you'll see just one small chunk by itself. But you may also have several chunks of different sizes come out when you urinate or appear every time you urinate for a certain period of time.