Generally speaking, a man’s sex life is considered normal if it lasts more than 3 minutes, but the exact time should be judged in conjunction with the feelings of both parties. According to the International Society of Sexual Medicine’s regulations on sexual life time, the general sexual life time is greater than 3 minutes is normal. But not every sex life time should be more than 3 minutes to be considered normal, because the sex life time is also affected by the psychological state and other factors, the occasional shortening of time, less than 3 minutes should not be regarded as an abnormal state. Specific time should also be based on the feelings of both parties to judge, such as although the time is less than 3 minutes, but within 3 minutes both parties can achieve a satisfactory state, should also be regarded as a normal state. Psychological factors, increased sensitivity of the glans penis can lead to abnormal sex life time, if abnormal, please go to the regular hospital, follow the doctor’s advice treatment.