Diagnosis of premature ejaculation: First, see if you can have continuous intercourse for more than five minutes, if yes, it should not be. Second, to be able to meet the sexual requirements of the other party, the sexual requirements of the woman is not. If it is, see if it is caused by the prostate, check the prostate, it is caused by mental factors, you can go to the score, because there is a judgment that the form scores to see if there is a problem of mental factors. Thirdly, to determine if it is not enough exercise, a long time of insufficient exercise may also lead to premature ejaculation.