A short course of antibiotics should clear up the problem. Even if you haven't had an injury, one of your testicles may start gradually aching and swelling. Are there blisters in the groin area? Check Your Symptoms Do you have a problem in the groin area? For example: A snapping sound may be heard with hip or leg movement. You have answered all the questions.
Groin Problems and Injuries
Red streaks leading from the area.
Groin Pain and Injuries in Men