The current definition of premature ejaculation time is unequal, and various experts as well as various schools of thought have different standards of formulation. It is widely accepted that if the ejaculation time is frequently less than one minute, it is called premature ejaculation, and if the sex time is more than one minute, it is not premature ejaculation, so there is no need to be overly worried and anxious. However, one time of sex does not determine the complete time, because there may be dynamic changes in the process, this time of sex is shorter, and maybe the next time of sex will be longer. Only in frequent and repeated ejaculation too fast, more than three times, if the sex time are too short, less than a minute or less, can be determined as premature ejaculation. For this kind of patients can go to the male department for consultation, to see whether it is due to psychological factors, or organic lesions caused, can use the drug Bilirim symptomatic treatment, Bilirim is also called Dapoxetine Hydrochloride, two hours before sex oral one, do not need to take the drug without sexual intercourse.