In fact, there's a pretty wide range: while 27 percent of toyear-old men masturbate once a week to a few times a month, that number varies quite a bit by age, according to a survey of 2, American men. But that doesn't mean that it can't pose a problem, particularly if it interferes with your everyday life. So when does a harmless masturbation habit turn into an issue? Here are the physical and psychological signs that you may need to give your boner a bit of a breather. These injuries could be mild e. Some guys who masturbate a lot use one specific type of stimuli—say, certain categories of porn coupled with specific hand movements.