The normal duration of sexual intercourse for men, for Chinese men, is about 14-15 minutes on average. If ejaculation is too fast, it often suggests the presence of premature ejaculation. Patients with premature ejaculation show an ejaculatory latency of less than two minutes after the penis enters the female vagina, and the duration of the disease is more than six months. The main cause of premature ejaculation is the low excitation threshold of the dorsal nerve of the penis, and a smaller stimulus can easily cause excitation of the penile nerve, which induces an ejaculatory reflex, resulting in rapid ejaculation. Due to the presence of premature ejaculation in men, the sexual life is short and the quality of sexual life is greatly reduced, so that men and sexual partners are not satisfied. So you need to be actively treated, you can be treated by drugs, such as commonly used drugs such as dapoxetine hydrochloride, which can improve male control of ejaculation to prolong the time, in addition to men in sexual life to master some sexual skills, to overcome psychological barriers, can also improve the symptoms of rapid ejaculation.