The reason is as follows: 1, sexual excitement is too high: sexual excitement is too high, which can easily lead to orgasm soon, the phenomenon of short hand rush time; 2, improper masturbation methods: over-stimulation of sensitive parts of the penis can lead to short hand rush time; 3, the influence of psychological suggestion: masturbation often want to reach orgasm faster ejaculation, natural ejaculation in this suggestion will be faster; 4, excessive masturbation masturbation. Excessive masturbation may affect the normal function of the reproductive system, and in the long term this may even lead to erectile dysfunction, premature ejaculation, prostatitis and other diseases. Therefore, although masturbation is a normal phenomenon, but to pay attention to control the frequency of masturbation in daily life, to maintain hygiene and cleanliness, healthy masturbation!