Definition of impotence The most common male sexual dysfunction is impotence. Impotence in medical terms means that the penis cannot get an erection for sexual intercourse, or the penis can get an erection but cannot maintain sufficient hardness to complete sexual intercourse. Impotence can be divided into two categories: primary and secondary; impotence that has never been able to have sexual intercourse is primary impotence, while those who had a normal sex life but later developed erectile dysfunction are secondary impotence. Occasional temporary inability to get an erection is normal. Erectile dysfunction that occurs during poor mental condition, exertion, excessive alcohol consumption, use of certain suppressive drugs, and acute illness cannot be used as a basis for diagnosis. According to the cause, impotence can be divided into two major categories: organic and psychogenic, of which psychogenic accounts for the majority, about 80% or more. The causes of psychogenic impotence can be summarized as follows: 1. Influences during the development process. For example, mental trauma during childhood sexual problems, improper parental education, etc. 2. Influence caused by incompatible interpersonal and family relationships. Such as dissatisfaction with the wife, distrust, difficult to resolve family conflicts, etc. 3, emotional aspects and awareness of the reasons. Such as persistent depressed mood, lack of sexual knowledge and certain medical influences. In short, the incompatibility between people is one of the very important factors causing sexual dysfunction. Most impotent patients will have this factor, either as a contributing factor to impotence or as the initial cause of impotence. Definition of Premature Ejaculation Premature ejaculation is the most common symptom of sexual dysfunction in men after impotence, and is one of the most misunderstood problems of normal sexual function. American sexologists surveyed 5,300 men and found that 75% of them, had ejaculated 2 minutes after penetration. China also had a survey, the survey has no time limit, at any time in your life there is premature ejaculation will give records, the results of 65% of people at different times have had premature ejaculation. This shows that premature ejaculation is the most common male sexual dysfunction, both in foreign countries and in China. Different people have different interpretations of premature ejaculation, and the meaning of premature ejaculation as described by each patient is very confusing. Diagnostic criteria regarding premature ejaculation vary widely, and a globally accepted definition of premature ejaculation has yet to be reached. The more stringent diagnostic criteria for premature ejaculation are based on whether the sexual partner receives sexual pleasure, but this is clearly too strict a criterion for judging whether a man is prematurely ejaculating based on his partner’s sexual satisfaction or whether he can achieve orgasm. This is because the female partner’s sexual pleasure is also related to a variety of other factors, such as the female partner’s mood, the male partner’s caress, the warmth afterwards, the position of sexual intercourse, and so on. As for the duration of sexual intercourse is also closely related to age, physical strength, sexual life experience, sexual position, penis pumping amplitude, frequency and the sexual response of women. Even if the same person in each sexual intercourse ejaculation fast and slow is not the same, the difference is too big, which will make a large number of men face “premature ejaculation disease” embarrassment, a foreign sexologist Feather’s research shows that only 27% of women in less than a minute of sexual intercourse can often reach orgasm.