So my is normal except for my left side of my there is an unnatural ridge on my . The right side is normal and flat but there is a ridge on the left side from a side view it would look like a half circle that stops at the main vein at the top of my and on the underside. It doesn't hurt or anything. It sort of reminds me of a rubber band that got rapped around my but is only on one side... I am still a virgin and I am 17 it has been with me since I was 15ish. I also jack off

Possibility:

"A lymphocele is a hard swelling that suddenly appears on the shaft of the penis after sex or masturbation. It occurs because the lymphatic channels (which make up part of the lymphatic system along with lymph nodes or glands) in your penis have been temporarily blocked. The swelling should soon subside and will not cause any permanent problems."

Always seek the advice of a doctor.

Link:
My penis has a lump on it, what is it? - Wellsphere