17+ Dog Threw Up Yellow Foam. If a dog only vomits once in a while, there is probably no reason to be alarmed. It may simply be that his stomach is empty and the bile is causing him to throw up yellow foam.
But learn about other probable causes to take appropriate action. If your dog is vomiting yellow foam or yellow mucus, we can gather that this liquid is in fact, bile. Vomiting caused by predictable source such as new medication.
He has thrown up about four times since yesterday evening.
A dog throwing up white foam, accompanied by problems urinating, lethargy and disorientation could be suffering from kidney problems. Why is my dog throwing up yellow mucus and not eating? However, we at least were able to train him to. My dog just vomited yellow foam;