Hypnosurgery is an operation where the patient is sedated using hypnotherapy rather than traditional anaesthetics.

Hypophysectomy is the surgical removal of the hypophysis (pituitary gland).

A hysterotomy is an incision in the uterus, and is performed during a caesarean section.

Ileostomy is a stoma (surgical opening) constructed by bringing the end or loop of small intestine (the ileum) out onto the surface of the skin, or the surgical procedure which creates this opening.