Mon, 20 Apr 2026 07:44:31 +0000

You Won’t Believe What’s In The Yellow Mass Your Dog Just Threw Up! If you’ve ever witnessed your beloved dog suddenly cough up a foamy, yellow mass, you’ve likely felt a mix of curiosity and concern. What exactly could be in that odd concoction? While it might look alarming, understanding the possible causes can help you stay calm and know when to act. Here’s everything you need to know about the mysterious yellow vomit your dog may have just produced. ### Why Is My Dog Throwing Up a Yellow Mass? The yellow color of vomit in dogs usually comes from gastric bile—a digestive fluid produced by the liver and stored in the gallbladder. Digested bile gives vomit its characteristic teal or yellow-green hue, especially when bile reacts with air during expulsion. But a pure yellow mass may indicate more than just normal digestion.