The dog suddenly stretches its neck and swallows saliva frequently

The dog suddenly stretches its neck and swallows saliva frequently. It may be that the dog has eaten something randomly and wants to spit it out. You can check to see if there is any foreign object stuck in the dog's mouth. Throat. If no foreign object is found stuck in the throat, it is best to take the dog to the hospital for examination. You must pay attention to your dog's diet and defecation in order to detect abnormalities in your dog in time.