l. Whether the physical fitness decreases. If after masturbation or the next day there is physical fatigue, mental weakness, physical wasting, insomnia, memory loss or inattention or even susceptibility to disease, etc., indicating excessive masturbation. If the number of masturbation is not much but the mental burden caused by fear, remorse, symptoms of neurasthenia, should also be regarded as the performance of excessive masturbation. 2, masturbation is too frequent. Modern medicine believes that men’s seminal cycle is about two weeks, the stimulation of semen filling will produce a desire to excrete, easily resulting in a seminal emission or masturbation. If the number of masturbation far exceeds this range, it is excessive masturbation. 3. Discomfort in the sexual organs. When masturbation or after masturbation, the sexual organs appear hidden pain, numbness and other uncomfortable feelings, or after masturbation often appear urinary discomfort or urethral burning-like uncomfortable phenomenon, female vulvar discharge increased, lower abdominal pubic pain and discomfort, etc., are the performance of excessive masturbation. 4, whether the sexual response changes. The time required to reach orgasm during masturbation is extended time by time; or the degree of masturbation stimulation, which increases time by time to reach orgasm, is excessive masturbation. 5, whether the mind is obsessed. If whenever you read novels, film and television cause sexual impulses, you must masturbate to relieve; or the mind is often the problem of sex, even if not every time you masturbate, you also have the idea of masturbation at times, it is excessive masturbation. 6, orgasm pleasure is reduced. Over-frequent masturbation can cause continuous congestion of the genital organs, and the mucous membrane of the organs of the water species feels sluggish. 7. No ejaculation during masturbation. Due to the rough way of masturbation, it leads to retrograde ejaculation of semen into the bladder, which is discharged with the urine after masturbation. 8, masturbation and infertility. Long-term frequent masturbation can cause both organic changes, such as varicocele; and functional changes, such as erectile dysfunction.