Premature ejaculation is the most common symptom of sexual dysfunction in men after impotence, and is one of the most misunderstood problems of normal sexual function. Different people have different interpretations of premature ejaculation, and the meaning of premature ejaculation as complained by each patient is confusing. Diagnostic criteria regarding premature ejaculation vary widely, and a globally accepted definition of premature ejaculation has still not been reached. At present, most experts and scholars believe that premature ejaculation occurs before the man’s erect penis is inserted into the woman’s vagina during sexual intercourse, or just before, or just after, entry, and the penis then shrinks and softens, so that sexual intercourse cannot continue and is aborted. Some people also believe that ejaculation after the penis enters the vagina and is in motion for less than a minute, or ejaculation after less than 15 strokes of the penis in the vagina, can be called premature ejaculation. In short, premature ejaculation is manifested as premature and rapid ejaculation after erection within a certain period of time, thus affecting sexual life and sexual satisfaction of both parties. The reasons for premature ejaculation are manifold, summarized in the following aspects: 1, psychological factors: such as a history of masturbation, in order to end early, the habit of premature ejaculation; premarital intercourse, nervousness, and strive to ejaculate quickly; interpersonal relations are not harmonious, the relationship between husband and wife is not harmonious; lack of self-esteem, sexual terror and so on. 2, organic factors: some diseases can cause sympathetic nerve damage and cause premature ejaculation, such as abdominal aortic aneurysm surgery, pelvic fractures, inflammation of the external genitalia and lower urinary tract, diabetes, cardiovascular disease, local sensory damage, the elderly and patients with arteriosclerosis may also appear premature ejaculation. 3, local factors: long foreskin, short penile foreskin ties that prevent full erection, can also cause premature ejaculation.