If the dog has not eaten for a long time, it will cause excessive stomach acid and cause vomiting. It is recommended to feed a small amount of easily digestible food and water, and feed it regularly and quantitatively every day. If a dog accidentally eats a foreign body, the foreign body blocks the gastrointestinal tract and causes vomiting of yellow water. It is recommended to take the dog to the hospital for a X-ray to determine the location of the foreign body and then remove it.

Gastroenteritis caused by overeating or being infected with pathogens in dogs can also cause vomiting of yellow water. It is recommended to consult a doctor for medication. If your dog suddenly vomits yellow water after a meal, it is most likely caused by irregular diet. If the dog is not fed on time for a long time and often eats messy food, the dog's gastrointestinal tract will be fragile, and the slightest irritation will cause vomiting and diarrhea.