Cats generally die if they do not eat for more than five days. If a cat does not eat for a long time, the glycogen in the liver will become fatty and then produce energy to supply energy to the body. Fatty liver is called fatty liver, which is very dangerous. In addition, if the cat still does not drink water, it may cause kidney problems, leading to renal failure. Therefore, once a pet owner finds that his cat is not eating, he must find out the cause as soon as possible and then treat it symptomatically to avoid accidents.