What is the difference between Dragonball Z and Dragonball Z Kai? When I first heard about Kai thought it was a Remake similar to the recent Sailor Moon Remake (not Crystal the original series where Haruka and Michiru were made to be cousins to censor their relationship). however i have seen posts that seem to indicate that the first few Sagas have been covered in less episodes in Kai.

So i am wondering what is the difference between the original Dragonball Z and Dragonball Z Kai? eg. What has been added/removed in comparison, do people bleed when their limbs get cut/ripped off (when i first saw DBZ there was never any blood)
To put it simply: DragonBall Z Kai is a remake which stays true to the original DragonBall Z Manga. A quick list of the main differences:


No Fillers.
Different theme songs.
Some Different Voice Actors (in e.g: Frieza, Gohan, Android 18).
Less Blood.


Note: Don't watch the censored version, you'll hate it.