Masturbating before intercourse once in a while is fine, masturbating before intercourse for a long period of time can have an impact on sexual performance. Some people feel that masturbation before intercourse can prolong the duration of sexual intercourse because they can’t ejaculate easily during intercourse. Masturbation before intercourse once in a while does have the ability to prolong the time of intercourse, because having masturbated before, the body’s desire is not so obvious during intercourse, and it is not easy to ejaculate. However, if you masturbate before intercourse on a regular basis, it will shorten the duration of your sex life instead. Long-term masturbation before the same room, in the same room to maintain the time is shorter, the same room more can not hold long, more likely to have premature ejaculation and other sexual dysfunctions. It is recommended that male friends do not masturbate before intercourse, if you want to extend their sex life time, you can consider going to the regular hospital to consult the doctor for the correct approach.