A man will not be able to ejaculate sperm after a ligation and, therefore, will not be able to impregnate a woman. A man’s ligation usually involves a vasectomy, in which a small section of the vas deferens is ligated and removed so that sperm cannot exit the body. Therefore, even if a man ejaculates during intercourse after a ligation, there will only be a small amount of prostate fluid or seminal vesicle fluid in the semen, and no sperm, so a man’s ligation will usually not make a woman pregnant. However, it is important to note that men need to do a semen test to check whether there are sperms in the semen after the sterilization. Before the test is completed, men should use condoms during intercourse until the test determines that there are no sperms in the semen, then condoms can be dispensed with. If a man has a need to have children after the ligation, he can go to the hospital for a restoration operation to restore his reproductive function.