OK. So, I'm a 16 year old male, and this lump that looks like a 3rd testicle appeared on my penis. Its above the middle of my testicles and almost half the size of one. Some forums suggested I should shine a ight through it to see if it was clear and yeah it was. What could it be and how can I treat it?
P.S. : I can include a full story of how and why I think it appeared if needed.