There are three ways a guy can get semen out of his body: first, normal sex, which is the most common and best way to ejaculate. Second, masturbation, through hands to help the penis erect and achieve orgasm and ejaculation. Occasionally 1-2 times of sex, occasionally 1-2 times of masturbation is not harmful to the body, if excessive and frequent masturbation is bad for the body, because an ejaculation action, ejaculation activity, equivalent to running 3 km of physical exertion, if too much physical exertion, too often is harmful to the body. Thirdly, dream loss, in the sleep through the more wonderful environment stimulation, beautiful women stimulation, to achieve the way the night sperm loss, the morning found semen out of the body, called dream loss. So through sex, masturbation and dream emission can achieve the purpose of ejaculation.