Vasectomy is a surgical procedure for male sterilization and/or permanent birth control. During the procedure, the male vasa deferentia are severed and then tied/sealed in a manner so as to prevent sperm
from entering into the seminal stream (ejaculate) and thereby prevent
fertilization from occurring. Vasectomies are usually performed in a
physician's office, medical clinic, or, when performed on an animal, in a
veterinary clinic hospitalization is not normally required as the
procedure is not complicated, the incisions small, and the necessary
equipment routine.