Puberty (adolescence) is the transitional period between childhood and adulthood. Care and education of reproductive health during puberty play an important role in ensuring the future career of each person as well as the population quality of the whole society.

Sex education for preschool and primary school children is extremely necessary and important to help children protect themselves, when the problem of pedophilia and child sexual abuse is increasingly receiving attention.

Biologically, a person's sex is determined by sex chromosomes, hormones, internal reproductive organs, and external genitalia. In addition, determining whether a child is a boy or a girl is based on many other factors such as social behavior, male and female attributes reflected in traditions and cultures in each region.

8-10 years old is considered a difficult stage for children, because children are very stubborn and do not listen to their parents. Therefore, to be able to educate children at this time best, parents should proactively learn about the psychology of 9-10 year old children.

Many toddlers are curious about their genitals and engage in self-stimulation. Boys may pull and pull their penises, while girls may rub their genitals with their hands. Many parents feel confused and embarrassed, and don’t know what to do when their children engage in these behaviors.

Teen dating can leave parents confused about sex education, often asking: What's the right age to date? What's the right age to fall in love? According to the American Academy of Pediatrics, kids start dating at an average age of 12 ½ for girls and 13 ½ for boys. However, every teen's age to start dating is different, and your child may be ready earlier or later than his or her peers. Learn more below.