The causes are as follows: 1. Dogs suffer sprains or fractures during exercise, 2. Dogs have gastrointestinal discomfort, abdominal pain, enteritis or other internal diseases in the body, 3. Dogs suffering from spinal neuritis will develop This state. When a dog at home exhibits this kind of behavior, if the cause cannot be determined, it is recommended to send the dog to a nearby pet hospital for examination and then symptomatic treatment.