Have you ever seen your cat suddenly vomit, sometimes even bringing up white foam? While it can be alarming, vomiting is actually quite common in cats. The Causes can range from hairballs and sudden changes in diet, to dietary indiscretion—like eating something they shouldn’t. When cat vomit is white and foamy, it could be a sign of an empty stomach or mild irritation. Occasional vomiting, especially when related to hairballs, is often manageable at home. However, persistent or worsening symptoms may require a visit to the vet. In this guide, we'll cover why your cat might be vomiting, how to assess the vomit, steps you can take at home, and when it’s time to seek professional help.