Hair blazers green

Bump on penile shaft? - penile shaft bumps photo

So I had this shock for a while. I do not know exactly how long I had, but as far as I know, I had about a year.

This is the same color of my skin, and is basically my body of the penis, and I heard about the importance of the sebaceous glands and usually occurs in groups. How many of them. But there is one, and it is slightly larger than the ones I saw in the pictures.

Over time, did not increase at all, never gave me any problems. It is there, so I'm not worried.

I'm curious what it is. Help?