Masturbation is a normal masturbation behavior of mature men. Masturbation itself does no harm to the human body, but too frequent and too fast leads to other diseases that affect the body. For example, frequent masturbation makes the urogenital system congested for a long time, and local immunity decreases, thus causing urethritis, prostatitis and seminal vesiculitis. Excessive masturbation, excessive sexual excitement and long-term mental fatigue will lead to decreased sexual desire, impotence and erectile weakness. For the sake of good health, it is suggested to minimize the number of masturbations so as not to affect the normal sexual life in the future.