Whats a sub-epidermal cyst on penis?

In a prior answer on a similar topic, i mentioned that pain in the penis could be caused by an abnormality under the top layer of the skin = sub-epidermal.

In your question, this abnormality is probably a benign cyst with fluid. See a urologist, may be able to drain it with very fine needle or remove cyst entirely (don't wince so much, local anesthesia will be used). Would you like to video or text chat with me?