Hand job in men or masturbation, as it is more popularly known as, is indulged in as a means of giving self-pleasure. It is also a common method of foreplay with partners during sexual activity. It is a perfectly natural activity, which is indulged in by humans and animals alike. There are several misconceptions that frequent masturbation leads to problems of the penis. While compulsive masturbation suggests some kind of emotional issues, if done judiciously it actually helps in overcoming depression and boosts self confidence.
Cases of men indulging in masturbation daily, is very common and perfectly normal. With age the frequency with which men can masturbate goes down. Whereas young men may be able to get back to start masturbating in some time, older men find it difficult to either get erection or excited again for several hours also. The frequency of masturbation as such has no health effects, except that if the movement is very vigorous, it can lead to abrasion and bleeding of the foreskin and damage to the veins of the penis. This will simply cause discomfort during subsequent masturbation or sexual activity. It is therefore recommended that men should gauge the frequency as well as the speed with which they masturbate without causing any physical harm. Since masturbation is a form of giving pleasure, by practice men can figure out the frequency as well as the intensity that gives them maximum pleasure. Just to add that a small break during masturbation has the potential to increase the pleasure multi-fold plus also enables men to become better sex partners as they are able to hold on to their ejaculation during sexual activity. This helps in heightening the pleasure for their female partners.
Over-masturbation can commonly cause the skin of the penis to become sensitive and sore. It can also cause numbness of the penis and loss of sensation. These of course can easily be countered by giving your penis a few days rest, just like you would do to your body after a tiring game or two. Some of the other effects of masturbation are that it can lead to tiredness and sexual exhaustion. Loss of concentration is also observed in men indulging in frequent masturbation, but this can be attributed more to the psychological effects rather than the actual effects of masturbation. In extreme cases it can also lead to erectile dysfunction. It can also cause leaking of the semen, which affects the ability of men to hold an erection during sexual activity leading to dissatisfaction.
answered by G M