The physiological need to solve their own, that is, masturbation, both men and women, is a very normal physiological behavior. The actual masturbation is not only harmless, but also beneficial to the physiology and psychology. But excessive masturbation or unsafe and healthy masturbation methods are harmful to the body, as follows: 1. If excessive masturbation may lead to reproductive system diseases, such as erectile dysfunction, premature ejaculation, vaginitis, etc. The frequency of masturbation should not affect the next erection, no physical discomfort symptoms as a principle; 2. Therefore, it is normal and healthy to address your physical needs in moderation, remember not to be too frequent, pay attention to cleanliness and hygiene, relax, adhere to the exercise and nutritional balance, which is good for your health.