Viral infections such as canine distemper and parvovirus can cause vomiting in dogs. The symptoms of dogs in the early stages of parvovirus and canine distemper infection are not eating, lack of energy and vomiting, accompanied by diarrhea or bloody stools.

When dogs accidentally ingest foreign bodies, chicken bones, etc., foreign bodies in the intestines and stomach can also cause vomiting, inability to eat, and lack of energy. The owner can consult a professional veterinarian and choose to send it to the hospital for examination and treatment after the cause is diagnosed.