As in humans, cats’ vomiting (or emesis) can occur in different circumstances and for various causes. Therefore, it is essential to differentiate the characteristics of each vomit to find out its origin and act quickly to calm the discomfort of our cat. 

In addition, as it is a fairly common symptom, it is essential to know how severe vomiting can be to pay the necessary attention and find a remedy or treatment. Vomiting in cats can be a clear indicator that something is wrong.


Some of the leading causes of cats’ vomit are digestive problems, pancreatitis, hairballs, eating disorders, or other diseases such as diabetes. Next, we will tell you which are the most common vomits, what they are due to, and the treatment to end them.

Types and colours of vomit in cats

As we have mentioned, the causes that cause vomiting in cats can be very different and of different severity. Thus, some of the most common types of vomiting and the reasons that cause it are:

  • Yellow cat: if the tone of your cat vomit is yellow because the content is mostly bile fluid helps the stomach digest food eaten. This vomit usually appears when the cat’s stomach is empty or with little food.
  • Cat vomit with white foam: it is vital to go to the vet urgently when our cat’s vomit is whitish as it can be a symptom of more severe diseases such as pancreatitis or diabetes.
  • When the colour of vomit is brown, it may be due to alterations or malfunction of an internal organ. Therefore, go to your trusted veterinarian when you notice that your cat’s vomit has a duller tone.
  • Transparent cat myth: Sometimes cats can salivate too and even get to throw water. This is usually due to a rejection of some food or medicine, so it is also highly recommended to have the opinion of an expert who makes an accurate diagnosis.
  • Vomit of cat with worms: some worms or larvae may appear in a cat’s vomit. The contagion of cats can happen in different ways, one of the most common through breast milk when they are small.

The most common types of vomiting in cats

Other less common typologies:

  • Vomiting with fresh blood: can be due to digestive bleeding, ingestion of foreign bodies, or alterations in coagulation, among others. When the blood is digested, it can be seen in the vomit that looks like coffee grounds.
  • Vomit with herbal content: it can be indicative of digestive pathologies. If the vomit has a stool odour, it may be due to a digestive obstruction.
  • Hairball vomiting: if it occurs frequently, it can also indicate an underlying disease.

What to do if your cat vomits?

Before the appearance of vomiting in cats, it is essential to go to the veterinarian to ensure the health and good condition of the animal. In addition, it will be in the veterinary clinic where they will rule out that the origin of said vomiting is due to a severe illness or that endangers their good condition.

Therefore, it is highly recommended to go to a veterinary clinic from the moment the first symptoms appear, perform different tests and thus be able to receive a treatment or make the most appropriate diet for your particular case.