Masturbation leads to increased ejaculation threshold is not true. There is no authoritative information that masturbation can lead to increased ejaculation threshold, and excessive masturbation may also stimulate the penis leading to lower ejaculation threshold, causing prostatitis and other diseases. Therefore, should adjust the frequency of masturbation, appropriate masturbation, not too frequent and violent. As too much masturbation can cause organic damage to the genitals, resulting in excessive sensitivity of the penile nerves. Moreover, masturbation leads to ejaculation by rubbing the penis to produce pleasure, and in the long run, there may be a conditioned reflex of ejaculation sensation as soon as the penis is rubbed, which may lead to a lowering of the ejaculation threshold or even the phenomenon of premature ejaculation. Excessive masturbation will also cause a series of harm to the body, can cause repeated congestion and edema of the reproductive organs, easy to cause prostatitis, seminal vesiculitis and other urogenital diseases. It is also easy to cause fatigue, fatigue, lack of concentration, endocrine disorders and other problems. Therefore, must adjust the frequency of masturbation, not too frequent. In daily life, you can appropriately carry out physical exercise, cultivate hobbies and other ways to divert attention, and actively listen to the advice of professional doctors to improve.