When you think it's becoming a problem and you ask such a question

This topic has come up before and the quick answer is that there is no such thing as excessive masturbation. If your dick gets hard and you have the urge to get a nut off, then go for it. When you've had enough, your dick will tell you by not getting hard anymore.

That being said, if masturbation is interfering with your social life and you are not making contacts that lead to partnered sex, then you might want to reconsider how much you are masturbating. But if you do have a good social life
but feel the need a augment your partnered sex with some self pleasure, then stroke out a load as often as you wish.

I can't quote it word for word but I have a old book from back in the 20's I think it is, that says that a young man should not do it at all because it waste his growth related hormones and he will grow up to be weak .

I might dig that book out and read that section again so i can qoute it better.

Blisters. Definitely...blisters.

never, self satisfaction is built into us, we need what we need and some need more than others, nothing wrong with it, so long as you don't do it in public, and its not effecting anyone else, lve masturbated all day some days, its my natural high, l love that euphoric feelings and l can never get enough...*Lix*

When you masturbate over something. For example, over the bed. Or over somebody's pics. Then it's over masturbation. But if you do it under the table it's under masturbation. And if you do it on the side, as a side dish to fucking, then, guess what, it's side masturbation.

In my younger days I masturbated so much, perhaps three times a night and first thing in the morning my cock was red raw and I was worried in case a girl asked what the sores were. These days if I wank so often I spend ages wanking but don't jerk because all my semen has been shot. That's what I call over masturbation. As a general principle if you can get erect you can masturbate.