Elastration is a means of castration used in animal husbandry that uses a small rubber band. Genital damage can occur in a human male if a tight rubber band is placed at the base of the genitals.
Procedure of elastration:
(1) The animal is usually a young male.
(2) A small rubber band is expanded, placed over the male genitals and then released.
(3) The tight rubber band cuts off the blood supply.