性征是指区别两性的特征。两性在生殖器或性腺方面的差别为第一性征。进入青春期后男女在外观上形成的差异为第二性征。人类的第一、二性征都是指生理解剖上的男女差别。第三性征是近年才出现的概念,它是指男女在人格上表现出的差异。第三性征与第一、二性征的区别就在于它是后天形成的,是可以改变的,并且存在优劣的差别。传统观念认为,在第三性征上男性优于女性。然而现代科学证实,两性在第三性征上各有优劣。首先就智力而言,两性在 Sexuality refers to the distinction between the characteristics of both sexes. The difference in genital or gonadal gender is the first sign. The difference in appearance between men and women after entering adolescence is secondary sex. The first and second sexual signatures of human beings refer to the differences in physiology and anatomy between men and women. The third character is the concept that emerged in recent years. It refers to the difference in personality between men and women. The difference between the third sexuality and the first and second sexuality lies in the fact that it is evolved from the day after tomorrow and can be changed, and there are differences in strengths and weaknesses. The traditional view is that men are superior to women in the third sex. However, modern science has confirmed that both sexes have their own advantages and disadvantages in their third sexual characteristics. First, in terms of intelligence, both sexes are there