The reasons why dogs vomit yellow things:

1. If the dog eats too much at one time, overeats, and secretes gastric acid to increase, it will Vomiting yellow stuff. Owners can feed their dogs some probiotics to regulate their intestines and stomach.

2. Dogs vomiting yellow things may be because the dog eats irregularly, causing stomach discomfort and vomiting gastric acid. The owner needs to arrange the dog's diet reasonably and give the dog some food that is easy to digest.

3. Dogs infected with infectious diseases such as coronavirus and parvovirus will damage the gastrointestinal tract and cause yellow vomitus. The owner needs to go to the hospital to have the dog tested for the virus.

4. Common enteritis can also cause vomiting in dogs, which is usually caused by eating leftovers or unhygienic food. It requires fasting food and water, and antibiotics are used for treatment.

5. After a dog swallows a foreign body, it will also vomit some gastric juice because it cannot digest it. X-rays are required to confirm the diagnosis, and if necessary, surgery is required to remove the foreign body.