Ligation refers to the ligation of the male vas deferens. It is usually done by making two small incisions on both sides of the scrotum under local anesthesia and ligating the vas deferens bilaterally, which only blocks the pathway for sperm to exit the body. The ligation will not affect male sexual function. Male sexual function mainly depends on normal male testicular function and normal penile blood vessels. After ligation, men can still have ejaculation and semen discharge, but there is no sperm in the semen, which cannot make the woman conceive. It does not affect the male testes’ function of androgen secretion, nor does it affect the blood flow of penile arteries and veins. Therefore, it will not affect the male sexual function. If sexual dysfunction occurs, it is often due to psychological factors.