Dear sir I am 23 years old healthy male. I haave a query in my mind , but first let me tell you abiut myself. I have a very bad habit of excessive masturbation which goes upto 10 - 15 times a day. I am afraid that this has affected me in some way, as now i get weak erections, but yes i do get erections, but very often when i am about to penetrate i loose the erection completely, and also i cannot have long erections, please guide me about this problem.is excessive masturbation a cause of it?