Hello. I have a terribly frustrating problem with my penis . Once every 3-4 weeks, the tip gets red and a yellow substance keeps coming out of it. Sometimes it hurts and I m very concerned with what the yellow stuff is. This goes on for a couple of days. Then it usually goes away and comes back after another 3-4 weeks, but for the last 10 days, it hasn t gone away, and have no idea what to do. I ve been having this problem for over a year now, but I don t want to tell my parents or go to the doctor. I m 16 years old and I ve never had sex, so it can t be an STD or anything. PLEASE help me.