It is normal for semen to flow out from the vaginal opening after being ejaculated into a woman’s vagina. On the one hand, semen is a liquid that is affected by the earth’s gravity and will flow out automatically when the woman is stationary or upright; on the other hand, only a very small portion of semen is sperm, while most of it is seminal plasma consisting of a mixture of secretions from the prostate, seminal vesicle and urethral bulb glands and other accessory glands, which serve as protection for the sperm, and send the sperm into the woman’s vagina and basically lose their function, thus flowing out of the vagina. Therefore, for the female population trying to conceive, the part of semen that flows out is not a cause for concern. The success rate of female conception is related to female ovulation and male sperm activity rate, and during the preparation period, both men and women should ensure that they stop smoking and drinking, and ensure that they eat a nutritious diet, take rest, exercise more, and improve their physical fitness, etc.