<unk>  is surgery to remove the coccyx.
In humans,<unk>  is the treatment of last resort for coccydynia, but a required treatment for sacrococcygeal teratoma and other germ cell tumors involving the coccyx.
To preserve normal defecation,<unk>  normally is accompanied by re-attachment (also known as re-approximation) of the two levator ani muscles and of the perineum, parts of the pelvic floor.  In adults who undergo<unk> , but not in babies and young children, one infrequent complication is a later perineal hernia.
Coccygectomy
Turbinectomy
Lobotomy
Pneumonectomy
Axotomy
R-ESHAP regimen
Bronchial thermoplasty
Phalloplasty