A dog that is inactive and has no appetite may be caused by hot weather, pyometra, kidney disease, pancreatitis, gastrointestinal discomfort, indigestion, or a bad mood. You need to observe the dog's condition. If the dog appears For other symptoms, it is best to send them to the pet hospital for examination and treatment immediately; if there are no other symptoms, you can feed the dog some probiotics, improve the dog's diet, or play with the dog.