Unnecesarean is an unnecessary cesarean. Most cesareans are unnecessary. Research into reasons for emergency cesareans found that 66% occur between the 25% of day shift hours of 8am and 3pm, and the least between 5am and 6am leading the authors to conclude that physician convenience is a leading cause of "emergency cesareans" or unnecesareans. (1)
Dr. S. Bewley has written extensively about the issues surrounding unnecesareans, which are often given the misnomer: 'cesarean by choice'. (2) A cesarean is a life threatening medical procedure that is obviously ultimately decided upon by a doctor or several doctors.
(1) Goldstick O, Weissman A, Drugan A. The circadian rhythm of "urgent" operative deliveries. Isr Med Assoc J. 2003 Aug;5(8):564-6.
(2) Bewley S, Cockburn J. The unfacts of 'request' caesarean section. BJOG. 2002 Jun;109(6):597-605.
(This entry was copied directly from http://en.wikipedia.org/wiki/Unnecesarean before it was deleted due to Non-noted Neologism.)