Orchiectomy (also named orchidectomy, and sometimes shortened as orchi) is a surgical procedure in which one or both testicles are removed. The removal of both testicles (bilateral orchiectomy) is the surgical form of castration.
There are three main types of orchiectomy: simple, subcapsular, and inguinal. The first two types are usually done under local or epidural anesthesia, and take about 30 minutes to perform. An inguinal orchiectomy is sometimes done under general anesthesia, and takes from 30 minutes to an hour to complete.