At first, people understood sex education as transmitting basic knowledge of physiology and health. With the progress and development of society, modernity education is not only a simple sexual health education, but also includes preventing sexual assault, promoting gender equality, mastering the principles and skills of love, marriage and sexual interpersonal communication, reflecting on morality and law, promoting sexual pleasure and many other aspects.

It can be said that human sexuality and the demand for sex education accompany our life.

As soon as the child is born, parents will judge the sex of ta, give her a name, teach her to live like a boy or a girl, tell her to know her body and private parts, and learn to protect herself. This is the origin of family sex education. When children are in the senior grade of primary school, they should tell them about puberty, such as menstruation and nocturnal emission, and understand the knowledge of physical development.

Sex education in adolescence is particularly important. Children may immediately fall into the conflict between emotion and sexual desire, so in the middle and high school stage, sexual health knowledge, basic principles of interpersonal communication, and awareness of gender equality should also begin to slowly penetrate into children to prepare them for entering universities or society.

Sex education for teenagers is how to make appropriate choices and judgments in the face of desires and feelings in a complex social environment.