People often associate impotence and premature ejaculation together, but in fact impotence and premature ejaculation are two diseases with their own different causes and symptoms. The official name of impotence should be called male erectile dysfunction, which refers to an erection that is not hard enough to insert into the vagina when attempting to have sexual intercourse, or an erection that is not hard enough to maintain long enough to complete a satisfactory sexual life. Male erection is a complex process involving various issues such as brain, hormones, emotions, nerves, muscles and blood vessels, which may be related to one or more of the above-mentioned causes, and can be classified as psychological erectile dysfunction and organic erectile dysfunction according to the cause of onset; it can be classified as mild, moderate and severe according to the degree of severity, where severe erectile dysfunction refers to long-term persistent most of the time unable to complete a satisfactory sexual life. Premature ejaculation is the disharmony of sexual intercourse that occurs when the penis is inserted into the vagina and the woman has not yet reached orgasm, while the man’s intercourse time is shorter than 2 minutes and he ejaculates early. It is generally believed that premature ejaculation is a phenomenon in which a man ejaculates after his penis is erect, before it enters the vagina, or just before it is incorporated, or just before it enters and before it is pumped, and the penis also weakens and enters a period of inactivity, but the time limit for premature ejaculation is difficult to determine. Clinically, patients may suffer from both diseases, or the other because of one, but the causes and treatment of the two are not the same, do not abuse drugs, and must be guided by a professional doctor after diagnosis.