Currently my cat is in serious condition and I was wondering: what happens if a cat fell from a high height, aka a roof?
Lots of things can make a cat fall/jump of a roof.
Hunting attempts, for example trying to catch a bird.
Overestimating his/her abilities.
Cats can get hurt if the fall is too short, because they haven't enough time to righten themselves.
A cat can get hurt if it is overweight and it falls from great height.
Wanting to get down but landing wrong can cause injuries, this is most common in kittens and very young cats.
Additional information: often cats that fall from tall buildings have a greater survival rate and less injuries than cats falling from lower buildings.