In vitro ejaculation is a way of withdrawing the penis so that semen is ejaculated outside the woman’s body when ejaculation is about to occur during sex, often used as a natural means of contraception that does not lead to prostatitis. However, there is some potential harm to the body because ejaculation is the process of semen being discharged from the urethra and is divided into two stages, ejaculation and discharge. The ejaculation refers to the secretion of semen from the paraphilic gland to the site of the prostate through the contraction of the vas deferens and the closure of the bladder neck and external urethral sphincter. Ejaculation refers to the discharge of semen from the urethra after contraction of smooth muscles and transverse perineal muscles. The whole process of ejaculation involves a series of complex neural reflexes, and if you suddenly interrupt intercourse when you reach orgasm, be sure to have some adverse psychological effects, reducing the quality of the couple’s sex life, and even causing sexual frigidity in the woman, and over time also prone to neurasthenia. For men, it may also cause premature ejaculation, impotence and other problems, and before the in vitro ejaculation, sometimes also need the auxiliary stimulation of the hand, which is different from the female vaginal stimulation strength, over time it is easy to suffer from non-ejaculation. In addition, when performing extracorporeal ejaculation, due to the sudden interruption of sexual intercourse, the recovery of penile congestion will be greatly slowed, and the abdomen, pelvis and prostate will also remain congested, which may also lead to prostatitis and pelvic disease over time. Therefore, although external ejaculation will not lead to prostatitis, it can lead to many chronic diseases, reduce the quality of sexual life, affect the relationship between the couple, it is recommended not to take too much external ejaculation.