中文摘要：

早泄是男性的性功能问题,但与女性密切相关。女性的阴道内力、性魅力以及因男性射精过早而对男性的态度,不仅可以改变男性阴道内射精潜伏时间,而且还可以使男性出现消极的心理反应。作者首次提出了阴道内力的概念,即阴道对插入阴道中阴茎的作用力。认为＂阴道内力＂是来自三个力的合力,一是阴道应力,即阴茎插入阴道后,阴茎使阴道形态发生改变,变形的阴道恢复原状而对阴茎产生的应力;二是阴道握力,即阴道肌肉收缩时对阴茎产生的压力;三是阴道摩擦力,即阴道与阴茎之间的摩擦力。认为阴道内力越大,男性阴道内射精潜伏时间越短,男性就越早泄。女性的性魅力越大,男性性伴侣的性兴奋程度越高,射精反射越容易形成,男性阴道内射精潜伏时间也会变短,男性也越容易早泄。但是,笔者认为早泄的本质不是男性阴道内射精潜伏时间长短的问题,而是社会父权危机及女权兴起对男性的压力而致的男性心理问题,是男性焦虑性抑郁症。女性为了提高性生活质量,对原本有益于生物进化的优势性行为方式（早泄）加以否定,让男性超越本能,对决自然规律,造成男性心理压力。医学有办法在一定程度上延长男性阴道内射精潜伏时间,但解决早泄的根本办法是改变全社会尤其是女性的性观念,别总拿阴道内射精潜伏时间说事儿,不要给男性压力。

英文摘要：

Premature ejaculation is the sexual function problem of the male,but it is closely related with the female. Female intravaginal force,sex appeal and attitude to men for male premature ejaculation not only can change male intravaginal ejaculation latency time,but also can make men appear negative psychological reaction.The author puts forward the concept of intravaginal force for the first time,which is the acting force of the vagina to the penis inserting it. The intravaginal force is the resultant force of three kinds of forces. The first is the vaginal stress,which is the distorted vagina restoring the original state and consequently stresses on the penis when the penis insert the vagina. The second is vaginal grip strength,namely the pressure that the vaginal muscles shrink and produce to the penis. The third is the vaginal friction,namely the friction force between the penis and the vagina. The greater the vaginal internal force is,the shorter the male intravaginal ejaculation latency time is. More likely men are to appear premature ejaculation. The greater female sexual charm is,the higher the sexual excitement degree of male sexual partner is,the easier ejaculation reflex formation is,male intravaginal ejaculation latency time will be shortened and men are also more prone to appear premature ejaculation. However,the author thinks that the nature of premature ejaculation is not the problem of intravaginal ejaculation latency time,but the male psychological problem caused by the pressure to man that comes from the patriarchal society crisis,feminist rising and male anxiety depression. In order to improve the quality of sexual life,women deny the dominant sexual behavior（ premature ejaculation） which is beneficial to the biological evolution and let men go beyond instinct and confront the law of nature,which cause men＇s psychological pressure. There are ways to extend intravaginal ejaculation latency time to some extent,but the fundamental way to cure premature ejaculation is to change the sexual idea of