Masturbation has certain hazards, such as affecting physical and mental development, and mental exuberance. 1. affect the physical and mental development: masturbation may lead to the genitals long time in the state of hyperactivity, especially men, may be prone to prostate diseases, such as prostatitis. 2. Hyperactivity: Masturbation can lead to many body systems being in hyperactivity for a long time, especially the spirit is often in hyperactivity, so part of the population may also induce anxiety neurosis, sexual dysfunction and other diseases. Masturbation may have an adverse effect on the human body, so do not long-term masturbation, so as not to have an impact on the normal sex life; if there are uncomfortable symptoms, it is recommended that you should seek medical attention in a timely manner; not to be handled privately, so as not to induce adverse consequences.