My Dog Threw Up Mysterious Green Chunks – Top 3 Reasons Why

Here are a few common reasons that may explain a dog that suddenly throws up green chunks in their vomit.

1. Regurgitating grass content

The mysterious green chunks might be something harmless. It could be the regurgitated content of grass or other green plants the dog might have eaten. Generally speaking, this isn’t a concern if it’s a one-off. Some dogs are known to throw up after eating grass. You should still call the vet if the vomiting is accompanied with other concerning symptoms like lethargy and loss of appetite.

2. Signs of gastrointestinal distress

Dogs may throw up green chunks in their vomit due to issues with their stomach or other parts of the digestive system. The green color could be due to bile (fluid from the liver) getting mixed in with the content inside the dog’s stomach or intestines.

3. Throwing up undigested content

Whatever came out from your dog’s body must have gone in at some point. The green chunks might be food content that your dog was unable to properly digest. This may include kibbles or green-colored snacks like Greenies dental treat. Dogs may throw up undigested food due to a number of causes such as a bowel obstruction.