Yellow and white vomit can indicate a few things, including:
* Bile: Yellow or greenish-yellow vomit often indicates bile, which is produced in the liver and helps digest fats. It's common in dogs who haven't eaten for a while, are stressed, or have an empty stomach.
* Food: White vomit can be undigested food, especially if it's recent.
* Other: It could also indicate a more serious issue like gastrointestinal upset, pancreatitis, or a blockage in the digestive system.
What to do:
* Monitor your dog: Note the frequency, amount, and consistency of the vomit. Observe for any other symptoms like lethargy, diarrhea, loss of appetite, or abdominal pain.
* Contact your veterinarian: They can assess your dog's condition and recommend the best course of action.
* Don't give your dog any medications without consulting your vet.
Important: This information is not a substitute for professional veterinary advice. If your dog is vomiting, contact your vet immediately.