The twitching on the cat's back is a physiological reaction due to stimulation. Because the skin of the cat's back is relatively sensitive, the back twitching will occur when the cat is petted or when the cat is angry or stretching. If the cat shows symptoms such as vomiting, muscle twitching, and inability to stand, it may be convulsions caused by poisoning or other diseases, and it needs to be sent to the hospital for examination in time.
