Yes you can cut off the limbs, head, and torso of corpses, theres blood, physical violence with intent to kill, and *Spoiler* Body horror monsters some can be killed some can not be
(SPOILERS) You have to kill Megan, and your son is dead unless you revive him, however to revive him you have to kill three other children. You don't see the corpses of the three others, but you see and interact with your son and Megan.
*Spoiler* At the end of the game an underground science research lab is discovered. Many parts of the lab resemble a hospital and the "patients" are all children with chronic or fatal illnesses who were tricked into thinking they were being treated.
To the comments saying yes-- there is body HORROR, but NO body dysmorphia. Unfortunately the mental illness is often confused with body horror, as with this case.
There is explicit nudity in the game such as breasts and certain enemies with genitals, but no actual sexual content takes place in the game at any point.