(2) Cultivate teenagers' good hygiene habits, such as keeping a regular life, avoiding colds, strenuous exercise and heavy physical labor, paying attention to the cleanliness of perineum and avoiding bathing.
(3) establish a healthy lifestyle;
(4) Scientific sex education, including sex physiology, sex psychology, sex morality (sex-related laws) and sexually transmitted diseases. By actively carrying out sexual health knowledge and ethics education, teenagers' self-esteem, self-confidence and willpower can be enhanced, psychological confusion can be alleviated, emotions can be stabilized, various psychological imbalances can be correctly treated, correct heterosexual communication relations can be established, and correct social morality can be established.