(N/A) Surgical methods,also known as sterilization,are advised for male or female partners as a terminal method to prevent any further pregnancies.
Surgical intervention blocks gamete transport and thereby prevents conception.
$(a)$ Vasectomy: The sterilization procedure in males is called vasectomy. In this procedure,a small part of the vas deferens is removed or tied up through a small incision on the scrotum.
$(b)$ Tubectomy: In tubectomy,a small part of the fallopian tube is removed or tied up through a small incision in the abdomen or through the vagina.
These techniques are highly effective,but their reversibility is very poor.