16-year-old girls often want to tuck in while sleeping. What happened? Do you want to see a doctor?

This is the performance of masturbation, masturbation itself is harmless. It won't cause disease. Many people get sick because they don't pay attention to personal hygiene, but they shirk it to masturbation. Therefore, maintaining good personal hygiene is fundamental to prevent all diseases. It helps to relieve sexual tension, relax yourself and relieve psychological pressure.