Many patients in the clinic believe that masturbation can cause premature ejaculation. In fact, there is no direct relationship between masturbation and premature ejaculation. The main causes of premature ejaculation are organic and psychological factors. The organic causes are mainly related to high penile sensitivity, 5-hydroxytryptamine receptor dysfunction, high sexual arousal, highly excitable ejaculatory reflex arc, certain endocrine diseases and genetic susceptibility, of which the first two factors are the most likely ones in current premature ejaculation research. Psychological factors, mainly insufficient ejaculatory control skills, poor sexual experiences in early life, anxiety and psychodynamic aspects. There is no evidence that masturbation is related to premature ejaculation, and even some masturbation patients, in pursuit of sexual pleasure, masturbate with a stimulation intensity that far exceeds that of the sexual process, which can even lead to non-ejaculation. There are also patients who believe that masturbation can cause erectile dysfunction, which is also wrong. This is also wrong. Only in individual cases where masturbation has caused damage to the penis in the wrong way, leading to fibrosis of the penile corpus cavernosum, will it affect erectile function. 1991 10th World Congress of Sexual Sciences suggested that “masturbation was previously considered a pathology, but now it is considered harmless and even healthy. If someone has a sexual problem, it is precisely those who cannot masturbate”, which scientifically explains that masturbation not only does not affect sexual function, but will also be like a dessert or fruit plate at the end of a meal, a useful addition to sexual life, and even conducive to a healthy sexual life.