Premature ejaculation is defined as the ability to have an erection, but loss of control over ejaculation, before or just before penile insertion into the vagina and ejaculation. Premature ejaculation is often caused by psychosomatic factors, and some patients have diseases such as penile sensory allergy, or prepuce penile head infection and prostatitis. The diagnosis of premature ejaculation requires a fixed sexual partner, a certain frequency of sexual intercourse, and a considerable period of time. For unmarried young people, premature ejaculation cannot be easily diagnosed, so as not to bring stress and pain to them and may really cause disharmony to their sexual life after marriage. Giving attention to many details in daily life can also reduce the occurrence of partial premature ejaculation. These include: 1) Try to avoid indulging in sex, reduce bad masturbation and other sexual stimulation, develop good habits and a regular sex life. 2) adjust tension and anxiety, usually pay attention to cultivate a wide range of hobbies, pay attention to the combination of work and rest, and actively participate in physical exercise; 3) occasional premature ejaculation is not worth making a fuss about, even men with strong sexual ability may occasionally encounter sexual frustration, in this case, both sides should be open to face, mutual understanding, and actively adjust, for example, during sex, pay attention to change the sexual position, etc. helps to prolong the sex life. Adequate sexual foreplay also helps to complete informed sex life. (4) understanding about sex general knowledge and sexual physiological differences between men and women can improve mutual understanding and eliminate misunderstandings.