Why Do Cats Throw Up? Cats may throw up even when they're not sick. If your cat throws up right after eating, they may be eating too much or too fast. They might be reacting to a change in their diet, or they might have eaten something they shouldn't have like a rubber band or piece of string.

When should I be concerned about my cat vomiting?

If your cat is experiencing repeated bouts of vomiting, you should contact your vet immediately. Continuous or severe vomiting could be a sign that your cat is seriously ill and requires immediate treatment. Contact your vet if your cat displays any of the symptoms below: Repeated vomiting.

Why do indoor cats vomit?

Cats sometimes eat too much, too fast. When the stomach wall expands too quickly, a signal is sent to the brain to cause regurgitation. In these cases, the mess on your floor is from regurgitation, not actual vomiting.