So I've been concerned since this morning when I noticed a small bump.on the underside of the shaft of my penis. It's a few mm across and it doesn't hurt. It's reddish around the outside and somewhat yellow where the bump appears. I looked around and concluded that it was most likely just a white head due to lack of hygine. I'm 15 with no sexual relations in the past, no oral, vaginal or anal sex. Not even kissing
So before I came to a conclusion I just wanted to check with someone else whether I should or shouldn't be concerned about this. I can manage to talk to my doctor privately if I need to but I would rather avoid the trouble if I can.
Thanks so much in advance to any insight.