If the cat has no adverse reactions, it may be because there is accumulated feces in the stomach. The owner can press gently to see if the cat feels pain. If not, there is no need to worry. The cat can be given some intestinal laxative food to help the cat defecate. If the hard lump in the cat's belly does not subside for a long time, and the cat shows loss of appetite and weight loss, it should be due to accumulation of water in the abdomen, and it is recommended to send it to the doctor for examination in time.