Sexual life is generally greater than 3 minutes time for normal. The specific situation varies from person to person, as long as the two sides in the process of sexual life can get orgasm, sexual satisfaction, which belongs to the normal time of sexual intercourse. The length of sexual life varies from person to person, clinical individual differences are great, generally greater than 3 minutes does not belong to premature ejaculation, if the time is less than 3 minutes, more than secondary premature ejaculation, if less than 1 minute, more than primary premature ejaculation symptoms to be considered. But it is not absolute. Clinical causes of premature ejaculation are many traditional concepts and psychological factors, and in recent years, research has found that and penile sensitivity, prostatitis, circumcision and penile head inflammation are also related. If you have premature ejaculation symptoms, you should go to the hospital in time to check, clarify the cause of the disease, and follow the doctor’s instructions for treatment.