Vasectomy does not affect the process of ejaculation. Vasectomy is a sterilization procedure for men, the specific method is to cut off or block the vas deferens to prevent the sperm from leaving the body, but from the composition of semen normal semen contains sperm and seminal plasma two parts. Most of the seminal plasma is prostate fluid, and the prostate is not blocked. After the vasectomy, the ejaculatory reflexes are not affected by the ligation of the vas deferens, and the physiological basis for ejaculation is still there. When sexual excitement is reached after the prostate fluid, seminal vesicles and the vas deferens all cooperate to achieve the purpose of ejaculation, at this time after the vasectomy seminal vesicles are blocked, but the prostate fluid can still be ejected out of the body through the prostate contraction of the prostate gland, but to see that ejaculated semen does not contain sperms.