====== Surgery ======

(from the Greek: χειρουργική cheirourgikē (composed of χείρ, "hand", and ἔργον, "work"), via Latin: chirurgiae, meaning "hand work") is an ancient medical specialty that uses operative manual and [[instrument]]al techniques on a patient to investigate and/or treat a pathological condition such as [[disease]] or [[injury]], or to help improve bodily function or appearance.

See [[neurosurgery]].

[[Elective neurosurgery]]

[[Urgent neurosurgery]]

[[Emergency surgery]] is one that must be performed without delay; the patient has no choice other than immediate surgery, if they do not want to risk permanent disability or death.