question: I had a 4 small purple bumps that have appeared on the head of my penis, about 4-5 weeks ago. They have not changed in appearance since they surfaced. They have not itched or burned in any way either. When erect they are not noticeable but are when flaccid. What could they be? They did appear roughly 2 weeks after unprotected sex. The visually sound like a mild case of herpes but have no other characteristics from what I ve read.