Masturbation is a natural and common behavior in both men and women. It is often the first sexual activity experienced during the growing up years. Masturbation is not known to have any adverse effects on your health and well-being. In fact, it lets you have sexual pleasure with zero risk of pregnancy or sexually transmitted diseases. At times, therapists advise masturbation for people who are experiencing sexual problems, because it helps you understand your sexual responses better. Excessive masturbation can have some harmful effects: Possible harms of masturbation Can cause abrasions or bruises if done too vigorously Inserting external objects during masturbation may cause injury and infections Spending too much time indulging in masturbation may start hampering a person s daily activities. If someone misses important tasks or starts spending less time socializing because of it, he is probably getting obsessed with it. He or she may start wasting valuable time and money on procuring pornographic material. One should consciously guard against getting too engrossed in such activities.