Physiological reaction is a normal physiological phenomenon of the human body, and does not cause harm to the body. In the adolescent male, due to the body androgen secretion, penis growth when the glans is too sensitive, or contact with sex-related content, often lead to unconscious physiological reaction, these are normal phenomena, do not worry too much. You can usually divert your attention, do more sports, and watch less publications, films and videos related to sexual content to reduce the distress caused by excessive physiological reactions. It is important to note that long-term excessive masturbation is likely to cause kidney deficiency, chronic prostatitis, and even premature ejaculation, which seriously endangers health.