Some people think that declawing is a simple surgery that removes a cats nails, this is not true. Declawing involves amputation of the last bone of each toe, removing claws changes the way a cats foot meets the ground and can cause pain similar to wearing an uncomfortable pair of shoes. There can also be regrowth of improperly removed claws, nerve damage and bone spurs. Most cats will become biters because they no longer have their claws as a defense. Cats scratch to remove dead husks from their claws, mark territory and stretch muscles.