Is masturbation harmful to health?

Harmful Confucius "The Analects of Confucius Ji Shi" said: "When you are young, your blood gas is uncertain, so you should quit it." . We should believe the words of ancient sages. Teenagers are in a period of physical development, so they should respect themselves and love themselves. Parents should also guide their children correctly. SY is harmful to the growth of teenagers. I hope parents can educate their children with positive energy.