Sex education is sex education (abbreviated as sex education in English), which is about sex education. Including physical, psychological and social aspects. The main contents include the physiological knowledge and psychological development of gender identity, as well as the knowledge, attitude and behavior related to gender and other intimate relationships. This is a course-based teaching process, exploring cognitive, emotional, physical and social significance. A lot of evidence shows that sex education can enable children and adolescents to acquire accurate and age-appropriate knowledge, attitudes and skills, and build accumulated values.

Generally speaking, the process of creating subsequent life is described in stages, including conception, embryo and placenta development, pregnancy and delivery. It usually includes sexually transmitted diseases (STDs) and prevention, as well as contraception.

Sexual physiology and psychological knowledge education for teenagers. The main contents are: anatomical knowledge of male and female reproductive organs; Physical changes during development; The process of fertility; Sexual moral education; Family planning, eugenics knowledge, etc. (Ci Hai explained)