Occasional masturbation is not harmful to the body, but excessive masturbation is harmful to the body. Appropriate masturbation is good for relaxation, but incorrect masturbation may be harmful to the body. Frequent masturbation may lead to lower sensitivity in normal sex life, and it is easy to lack of sexual pleasure in normal sex life. If you masturbate with excessive violence, it may cause damage to the vagina, and frequent masturbation will destroy the balance of vaginal pH, which may also cause vaginitis, urinary incontinence and other diseases, so excessive masturbation is harmful to the body. Women need to pay attention to local hygiene when masturbating, pay attention to wash the vulva and hands before masturbation, choose a relaxing and comfortable environment for masturbation, appropriate relief of psychological pressure, and pay attention not to overdo it. If there is any discomfort, consult a doctor in time.