Organic or mental reasons
In 1943, a typical study of patients with premature premature ejaculation was conducted in 1943.Patients are divided into two groups, one group may be premature ejaculation in organic or physiological causes, and the other may be mental.
Classified according to the satisfaction of sexual partners
The initial researchers (Masters and Johnson) defined premature ejaculation as men that men cannot fully extend the ejaculation time and make their sexual partners a climax of 50%of sexual intercourse.From this point of view, the importance of premature ejaculation is that long -term sexual intercourse can make women more likely to reach orgasm.There are reports that only 27%of women in less than 1 minute of sexual intercourse have too much orgasm and 66%of women in more than 12 minutes of sexual intercourse can often reach orgasm.On average, women reach 8 minutes.
Round according to the number of twitches and random control of ejaculation
The number of twitching times is also used to define premature ejaculation. It is recommended to use less than 8 or 15 times as the diagnostic criteria.Recently, whether the ability to control ejaculation at will has been used to define premature ejaculation.In fact, many diagnostic standards including sexual intercourse time and random control of ejaculation are recommended.
Classified according to the duration of sexual intercourse before ejaculation
Definition of premature ejaculation usually requires normal time from the penis to the vagina to ejaculation.A early study of healthy men showed that the average sexual intercourse time was 20 minutes.However, a survey conducted by the nearly 1,000 couples in 1996 showed that the average sexual intercourse time was 4 ~ 7 minutes. The subsequent survey showed that the average sexual intercourse in the United States was 10 minutes.) Slightly.Other studies have shown that sexual intercourse can be premature ejaculation from less than 1 minute to 10 minutes.
