Cat Vomiting Yellow Bile: Causes, When to Worry, and What to Do

TL;DR: Yellow vomit in cats usually indicates bile from an empty stomach and is typically a medium-urgency situation. If vomiting is frequent or accompanied by symptoms like lethargy and loss of appetite, you should contact a veterinarian promptly.

What does it mean if my cat is vomiting yellow liquid?

Vomiting yellow liquid in cats often indicates that their stomach is empty and they are expelling bile. Bile is a digestive fluid produced by the liver, and when it comes up, it usually means the cat has been feeling nauseous for some time, or has an empty stomach and is retching. While occasional vomiting of yellow liquid might not be a cause for alarm, persistent or frequent episodes warrant attention.

Is yellow vomit in cats considered a veterinary emergency?

• Monitor your cat closely for any behavioral changes.
• Observation is acceptable for a short period if the vomiting is infrequent and your cat is eating, drinking, and maintaining normal energy levels.
• Seek veterinary advice promptly if vomiting is frequent, contains blood, or is accompanied by lethargy, loss of appetite, or diarrhea.
• Be aware that dehydration can become a major concern with repeated vomiting episodes.

Why should I take a photo of my cat's vomit for the veterinary team?

• It allows the veterinary team to assess the color and consistency of the vomit.
• It helps identify the presence of any foreign material or blood.
• Visual information combined with your description of symptoms helps provide an accurate initial assessment and determine the appropriate level of care.