Orgasm is the culmination or climax of sexual excitement, during which increases the concentration of blood in the genitals, muscles constrict the erogenous zones and sexual tension is released. In man accompanies generally ejaculation. Sometimes, abnormal orgasm, ie, delay or absence of orgasm, persistent or recurrent, occur after a normal sexual excitement phase. The most frequent clinical form of male orgasmic disorder is delayed ejaculation in the vagina, and the most severe anejaculation, which is the total lack of expulsion of semen. This dysfunction can occur both during sexual relationship with the couple as during masturbation and often causes more psychological (anxiety, pressure ) to physical ( spinal cord injuries, neurological diseases ).