A hymenotomy is a medical procedure involving the surgical removal or opening of the hymen.

A laminotomy is an orthopaedic neurosurgical procedure that removes part of the lamina of a vertebral arch in order to relieve pressure in the vertebral canal.

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).