1. Overfeeding: If the owner feeds too much, the dog will vomit. It is easy for us to judge that the clap belly and the undigested food spit out are all evidence of vomiting. At this time, we must stop feeding.

2. Rumination: If the dog spits out the food, but immediately eats it back, this situation is usually nothing, similar to the rumination phenomenon of cattle, which happens occasionally without going to see a doctor.

3. Stuck by fishbone: Stuck by fishbone can also cause vomiting. When you see a dog scratching its mouth and teeth with its claws, it is very painful. It is likely that the fishbone is stuck in the throat. If this is the case, we can only ask the veterinarian to remind the owner not to feed the dog fish with hard thorns easily.

4. Dogs also get carsick. If it is vomiting caused by motion sickness, the owner need not worry too much. Let him have a quiet rest. If you find that your dog is carsick, you can relieve the symptoms by not eating or drinking before going out.