1, lack of sexual knowledge. The author has seen some patients have no knowledge of sex, do not understand the basic essentials of sexual intercourse leading to the inability to have a normal sex life, most of these patients from remote rural areas. 2, the wrong sex education. Religious teachings or parents of children or adolescents appear normal sexual response overly condemned, punished, intimidated and other wrong education, so that they believe that sex is a sinful, dirty, dirty behavior, so that they forced to inhibit the normal emergence of sexual physiological phenomena. 3, the husband and wife relationship is not harmonious. Marriage is not as good, the husband and wife relationship tension, divorce, widowhood and other mental trauma is difficult to eliminate, or spouse overemphasize the quality of sex life, adding to the pressure of the patient’s mind. 4, medical factors. Doctors easily make the diagnosis of erectile dysfunction and over-exaggerate the danger and severity of impotence, adding to the psychological burden of patients. 5, other. Such as work is too nervous, tired, unsatisfied with work, environmental changes, sex life environment, poor living conditions, fear of club psychological pressure, fear of pregnancy, fear of wife can not reach orgasm and complaints, blame, fear of others to see, fear of infection STDs, etc..