Why Does My Cat Vomit After Eat: The Truth

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Q: Cats often vomit after eating cat food, vomit, then want to eat. How to do it?

A: If the frequency of occurrence is not high and the vomit is still the cat food just eaten, it is usually caused by eating too fast, or strenuous exercise just after eating, or drinking a lot of water, and is prevalent in homes with more than two cats. It is recommended that multiple cats be fed separately, the number of single feedings is reduced, and each cat is fed alone for more than 20 minutes.

The above is the general way to answer this question. However, cat vomiting is, in fact, a very complex problem.

Causes of Cat Vomit

1.Dietary problems

For example, bacterial infections causing by food spoilage. Low-quality protein in the staple food (such as food made from trimmings, feather meal, etc., the protein content is sufficient, but basically can not be absorbed). Food component allergies (a good spirit can eat and sleep but intermittent vomiting, then it may be due to long-term feeding of allergic food). Long-term feeding of a single food cat when changing food is also easy to cause vomiting.

In addition, many additives in snacks are also likely to cause vomiting, such as propylene glycol, lure red (food coloring FDC red# 4), ethoxyquinoline, surfactants, etc. When buying cat food, pay attention to the ingredients label.

2.Lactose intolerance caused by milk

Another big reason is that your cat eats too fast and too much, which is common in multi-cat/pet households. One little thieving cat eats its meal quickly and then goes from bowl to bowl to see what the other animals have to eat – it may throw up itself because it consumes too fast, and the other cats may throw up because they are nervous about the food. In this case, separate the cats’ eating areas and give each cat at least 20 minutes to eat alone. Drinking water immediately after eating puffed cat food may cause it to swell and cause vomiting.

3.Vomiting caused by cat grass

Grass leaves can irritate the cat’s esophagus and cause vomiting. It is thought that this condition is caused by the cat feeling sick and needing to vomit.

4.Vomiting greenish-yellow material

The cat’s body responds to the upcoming digestion time by producing digestive juices in advance. If you do not feed the cat within two hours of the digestive juices being made, it is likely to vomit yellow liquid – as digestive juices are irritating to the stomach and intestines. That’s why it’s also pretty essential to fix meal times.

5.Hairball syndrome

Long-haired cats and over-groomed cats are prone to this problem. Generally, cats can expel the ingested hair by themselves. There are two prominent cases where they cannot be removed: firstly, the cat’s gastrointestinal peristaltic ability is severely reduced, and medical attention is needed. Secondly, the hairball is too big to cause obstruction, and some means are required to help expel the hairball. And if it is impossible to remove it, gastroscopy or surgery may be needed to help.

6.Gastrointestinal Diseases

Cats can also vomit due to intestinal diseases, including inflammatory bowel disease (IBD), irritable bowel syndrome (IBS), gastritis, enteritis, and colitis. Chronic gastrointestinal inflammation in cats is often associated with intermittent vomiting and can lead to gastrointestinal lymphoma. Cancer of the gastrointestinal tract can also cause vomiting.

7.Ingestion of foreign bodies

Cats are prone to ingesting foreign bodies and debris, especially threads and small plastic and foam products. The ingestion of indigestible foreign objects blocking the upper gastrointestinal tract can cause vomiting. So care must be taken to keep small things away and prevent the cat from eating them indiscriminately.

8.Severe constipation

Cats with severe constipation are likely to vomit. This is usually determined by palpation of the abdomen and the time of the most recent bowel movement.

9.Intestinal parasites

Large numbers of roundworms and hookworms can cause vomiting. Hookworms attach to the small intestine and damage the mucosa of the small intestine, causing vomiting; roundworms cause vomiting by blocking the digestive tract. Internal parasites can be prevented by regular deworming.

10.Viral infection

The most typical symptom of feline distemper is vomiting. If it is an unvaccinated kitten, feline distemper should be ruled out first.

11.Motion sickness tools

Not only car sickness and seasickness, but some cats are also even seasick in cat bags, so cat bags should be chosen well, with sufficient support, little environmental taste, large space, and ventilation and air measures.

How to Determine the Severity of Vomiting?

There are countless reasons for vomiting to determine whether the vomiting is severe or caused by a mild illness depends on other symptoms.

From the content of the vomit:

  • ①Vomit has blood or mucus, which generally indicates inflammation or bleeding in the front end of the stomach and small intestine
  • ②Vomit is undigested food, meaning food spoilage, cat in anxiety and stress or overfeeding
  • ③The presence of yellow-green bile and mucus in the vomit suggests irritation of the duodenum. Irritation or inflammation of the duodenum can trigger reverse intestinal peristalsis and lead to vomiting, which is why intestinal parasites are occasionally seen in the vomit.
  • Determine the location of the problem by its shape and timing ① Inflammation of the gastric mucosa can lead to acute vomiting
  • ②Oesophageal obstruction or inflammation can lead to very rapid vomiting, and the vomit often maintains its shape through the esophagus, resembling a small segment of sausage

What is the Need for Emergency Medical Care?

If vomiting is accompanied by fever, hypothermia, bloody diarrhea, depression, respiratory distress, or persistent vomiting, the cat must be taken to the hospital immediately.

Persistent and violent vomiting can lead to loss of acidic gastric juice and potassium ions, resulting in metabolic alkalosis and hypokalemia. If diarrhea coincides, there is a high risk of dehydration, which can also lead to muscle weakness. So when your cat vomits violently and is weak, it is in critical condition.

Causes of Chronic Vomiting

  • ①Cat hyperthyroidism, which occurs mainly in middle-aged cats that are thin and active.
  • ②Pancreatitis, which also causes vomiting; pancreatitis in cats is usually a manifestation of trichotillomania (three concurrent diseases of feline inflammatory bowel disease, cholangitis/biliary hepatitis, and pancreatitis)
  • ③Middle ear and inner ear infections
  • The nerve in the inner ear has a role in controlling balance, and cats with chronic deep ear infections may experience nausea and vomiting due to damage to this part of the nerve
  • ④Cat heartworm infections often result in asthma and vomiting symptoms
  • ⑤ Hypoadrenocorticism (Addison’s disease, age of onset usually 4-8 years, with vomiting, diarrhea, easy stress, hypoglycemia, and hypotension)
  • ⑥Heatstroke can also be associated with vomiting, and cats that stay in the cat bag for too long in summer are especially prone to heatstroke.
  • ⑦ Other causes: kidney failure, liver failure or cholecystitis, tumors, postoperative, poisoning (plants, chemicals), certain drugs, etc. can also cause vomiting

Measures After Vomiting

  • ①Check the cat’s mouth to see if the gums are white or cold; if there is depression, diarrhea, fever, or other unusual symptoms
  • ②See if the vomiting is caused by food or medication
  • ③Fast for 12 hours and water for 2 hours (if you still vomit after drinking water, please send to the hospital immediately)
  • ④After fasting, stop vomiting and feed a small amount of easily digestible food with probiotics
  • ⑤After that, provide a small amount of food every 4 hours or so. If all symptoms disappear after 24 hours, you can resume a regular diet.

Final Thoughts

There are many causes of vomiting in cats. If vomiting occurs just after eating, it is most likely to be caused by eating too fast or feeding irritating food. If vomiting occurs after eating for some time, it is mainly considered indigestion caused by indigestible food. It is recommended to provide easily digestible food, and if necessary, relevant medication to promote digestion can be fed.

In addition, acute gastritis, feline distemper, and feline intestinal coronavirus infection can also cause vomiting. Still, the frequency of vomiting caused by these causes is high. It can easily lead to dehydration and, in severe cases, may lead to the cat’s death. It is recommended to bring it to the vet hospital for further examination and treatment promptly. Finally, intestinal blockage and kidney disease can also cause vomiting, and relevant screening can be done according to the cat’s condition.

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