You can observe it for a while. If the cat food has just been changed and the cat has diarrhea, it may be that the owner changed the food incorrectly. After eating the previous cat food, he directly fed the new cat food, causing the cat's food to temporarily become loose. Inapplicable, diarrhea and diarrhea occurred. When a cat wants to change its food, it should be done step by step. First mix the old food with a small amount of new food, and add more every day. This way, the cat will have room to adapt to the food, and the symptoms of diarrhea will be reduced or eliminated.