Because of excessive masturbation, penis becomes thin at base. Basically it shrinks in size. It become very narrow at the base while it remains normal near the top. Wrinkles form at the base causing it a different look. How it really become shrinked, I don’t know. What I am of the opinion is due to excessive masturbation, the penis get weak and it basically looses all of its meat. The shrinkage also causes your penis to have reduced erection size. It is almost always ensued by Leakage of semens
It is interesting to note that I never saw my penis shrinkage during all the time when I was doing masturbation 2 times a day. It was once a pamphlet that I read which said all the bad effect include penis shrinkage. When I went home that day and saw it the first while I was quite fearful that it might have happened to me, I indeed noticed it was shrinkage at the base. Why I never noticed during all that time and then all of a sudden? I was never into the size issue or never looked it that. Could the pamphlet created fear in me and that cause the shrinkage? That is a good theory but it did not happen just one time, it happened every day, every time I masturbated it would increase, if I did not, it would decrease. To me it is almost a proof shrinkage of penis is caused by excessive masturbation.
What if you think you masturbate a lot but you haven’t seen shrinkage of penis. That means you have not done it to the level that is caused this side effect. If you haven’t seen it you are probably ok and do not need to worry about. Just get into normal masturbation habit, not excessive.
While I do not have a photo of it, I have sketched it. If you are someone would would like to send such a pic for education purpose, feel free to email me at sacseducation at yahoo dot com.