My dog is vomiting yellow foam — what does it mean?
Yellow foam is stomach bile. In dogs, an occasional morning episode is usually bilious vomiting syndrome and benign.
Tell crittr what's happening
What to watch for
- More than 2 episodes in 24 hours
- Any blood or coffee-ground material in the vomit
- Belly looks bloated or painful
Common questions
Is this actually an emergency?
Most of the time, no — this category is usually safe to manage at home with monitoring. That said, every critter is different. Run your specifics through the chat above for a read on your pet, not the average.
What symptoms should I watch for?
Three signs worth watching in the next 24–48 hours: More than 2 episodes in 24 hours; Any blood or coffee-ground material in the vomit; Belly looks bloated or painful. If any of them show up or get worse, move up one tier (home → vet, vet → ER).
Do I need to pay for a vet visit just to ask?
No. Our triage chat is free — it'll tell you whether a vet visit is actually warranted before you spend anything. If you do need a licensed vet, we connect you to one via Vetster or AirVet in minutes, from your phone.
Can crittr fill a prescription for this?
If a licensed vet prescribes meds during or after triage, yes — Rx orders are routed through our licensed pharmacy partner (Chewy Pharmacy). You can also browse our OTC picks directly; we only stock items our vet advisors actually recommend.