While cats often vomit for minor and benign reasons such as eating too quickly or playing too much after a meal, WebMD states that frequent and reoccurring vomiting can indicate colitis, intestinal obstructions, kidney failure and other illnesses. According to Healthy Pets, some cats also chronically vomit because of hairballs.
Although an isolated case of vomiting followed by normal eating behavior and bowel movements is probably not cause for concern, WebMD advises owners to watch for more worrying symptoms such as diarrhea, dehydration, lethargy, bloody vomit, weight loss and appetite changes. If these symptoms accompany a chronic vomiting episode, the animal should be taken to a veterinarian immediately.
WebMD also suggests withholding food and water until the vomiting has stopped for at least two hours, then slowly reintroducing water followed by a bland diet of boiled potatoes, rice and cooked chicken breasts.
A common cause of vomiting in cats is an unhealthy or poor diet, usually due to rendered meat and offal in their food, according to Healthy Pets. Some cats also develop food allergies after being fed the same meal over and over. Furthermore, most cats are lactose intolerant and vomit after drinking too much milk. Cats also sometimes vomit when their stomachs are empty, but this can be offset with a small snack.