hi doctor. My penis always turned dark after intercourse. it will be darker than the original color. The most significant area is at the head of my penis. The head of the penis also had a few a significant black dots. In addition to the wrist of the head of my penis also looks like white dots embossed stand. this all happened after I started to have sex, which in the past year. It is very troubling to me. How can I overcome this problem. I hope you can help me. TQ
Thanks for asking in Chat Doctor forum In short: I think you have force spots over there. Explanation: Darkening and lightening depends on the blood flow over there, so you need not worry. For your white/black dots, I think those are force spots(visible sebaceous glands) which are harmless and normal.  You can visit a doctor so that you clear your doubt by showing him the lesion.