The back bone of a cat is the spine, which controls the movements of the body and trunk. It is the main component of the cat. If the owner pinches the cat's back too hard, it will cause pain to the cat, and the cat will naturally meow. If the owner is worried that the cat is injured, You can observe whether there is any pain reaction by touching it gently. Generally, if the cat has a spinal injury, it will feel pain if it is touched gently.