Excision is a 2012 American psychological horror film written and directed by Richard Bates Jr., and starring AnnaLynne McCord, Traci Lords, Ariel Winter, Roger Bart, Jeremy Sumpter, Malcolm McDowell, Matthew Gray Gubler, Marlee Matlin, Ray Wise, and John Waters.

Her younger sister, Grace, suffers from cystic fibrosis, and the girls' controlling, strongly Christian mother Phyllis shares a strained marriage with their father, Bob.

Bates, a Virginia native and graduate of the New York University Tisch School of the Arts, filmed Excision over 28 days in and around Los Angeles, California.

The website's consensus reads, "Excision effectively blends body horror and adolescent drama, although its visceral aggression definitely isn't for all tastes.

"[6] Steve Rose of The Guardian rated it 2/5 stars and wrote, "This body-horror teen effort could have [been] Cronenberg meets Solondz – but it isn't".

[7] Witney Seibold of IGN rated it 7.5/10 and wrote, "Excision is twisted, ballsy, nasty, kind of gross, and more than a little bit disturbing."

Streiber states it "revels a little too much in its gore" and seems as though it is a splatter film "only intended to shock", though the ending "clearly accentuates the tragedy of its clearly insane main character.