Dogs sometimes vomit up yellow foam. This yellow foam is a form of bile, or digestive fluid, that is produced in the liver, stored in the gallbladder, and released into the small intestine, just below the stomach. This yellow foam usually means that its stomach is empty and the bile is causing stomach irritation.

What does it mean when a dog throws up yellow mucus?

The vomiting of yellow mucus may be an indication that there is bile in the dog's vomit. Bile is an alkaline fluid, which helps with digestion. ... Bile is produced in the liver and then stored in the gallbladder. The gallbladder then releases bile into the duodenum.

Should I feed my dog after vomiting yellow bile?

If your dog vomits yellow bile just once, there is no need for alarm. Watch your dog for lethargy, diarrhea, loss of appetite, weakness, and other signs of illness. If your dog seems otherwise normal, watch for more vomiting. If the vomiting continues, skip your dog's next meal and continue to observe.