Pancreatitis in Cats: Signs, Diagnosis and Treatment

What pancreatitis is

The pancreas sits between the stomach and the small intestine. It makes enzymes that digest food and hormones such as insulin that control blood sugar. VCA Animal Hospitals explains that in pancreatitis, digestive enzymes become active too early, inside the pancreas itself, and start to damage it. The Merck Veterinary Manual describes it as the most common disease of the digestive part of the pancreas in cats.

It can be acute, coming on suddenly, or chronic, flaring up repeatedly over time, and either form can be mild or severe. In most cats no trigger is found. VCA lists links with inflammatory bowel disease, inflammation of the liver and bile ducts, diabetes, fatty liver, kidney or heart disease, abdominal injury and FIP. When the pancreas, liver and intestines are inflamed together, vets call it triaditis. Age, sex and breed do not appear to affect the risk.

Signs of pancreatitis in cats

The signs are often subtle and easy to mistake for a minor upset. Merck lists lethargy, poor appetite, dehydration, weight loss, low body temperature, vomiting, yellowing of the skin or gums, fever and abdominal pain, and notes that some cats show no signs at all. VCA also lists nausea and diarrhea, and stresses that the signs are often vague. Vomiting and diarrhea can occur but are not always present.

Because the signs are so general, a vet visit is the only way to separate pancreatitis from the many other causes of a quiet cat that will not eat. Chronic pancreatitis can cause months of on-and-off appetite and gradual weight loss. VCA notes that severe acute cases can lead to shock.

When to call your vet today

Call your vet the same day if your cat has eaten little or nothing for a day, is vomiting more than once, seems unusually lethargic or is hiding, or has lost weight. These signs have many causes, but a cat that is not eating should not be left to see whether it recovers on its own.

If your cat has diabetes, inflammatory bowel disease or liver disease, call sooner for any change in appetite or energy, because VCA lists those conditions among the ones linked with pancreatitis. Also call if a cat already treated for pancreatitis shows the same signs again.

When it's an emergency

Go to your vet or the nearest emergency vet immediately if your cat is weak or collapsing, feels cold, has pale or yellow gums, is vomiting repeatedly and cannot keep water down, cries when its belly is touched, or is breathing fast. Those signs can mean severe pancreatitis or another serious problem, and Merck notes that about half of cats with severe pancreatitis may die, so speed matters.

A diabetic cat that stops eating and is vomiting also needs same-day emergency care, because a diabetic cat that is not eating needs its treatment reviewed straight away. Phone ahead so the hospital can prepare.

What you can safely do at home

Do not give pain relievers, anti-nausea tablets or any human medicine; many are dangerous to cats, and only your vet can choose safe pain relief and nausea control. Do not withhold water, and do not start fasting your cat on your own. Merck notes that withholding food is used only in specific circumstances under veterinary care.

Offer fresh water and a small amount of your cat's usual food, and note what is eaten, how often your cat vomits, and any diarrhea. Keep your cat warm and quiet. If your cat has been treated, follow the feeding and medicine plan your vet gives you exactly, including any lower-fat diet they recommend.

Keep fresh water easy to reach, for example with a cat water fountain, but do not try to treat vomiting or appetite loss at home.

What the vet will likely check

Pancreatitis can be hard to confirm. Your vet will examine your cat, feeling the belly for pain, and run blood tests. VCA describes a feline-specific pancreatic lipase test, which can be run in the clinic or at a laboratory, and an abdominal ultrasound that can show an inflamed pancreas. VCA also notes that tests miss many cases, so the diagnosis is sometimes made from the signs and history, and Merck mentions X-rays or a biopsy where needed. Your vet will also look for linked problems in the liver, intestines or blood sugar.

Treatment is mainly supportive: intravenous fluids, anti-nausea medicine, pain relief and nutrition. VCA notes severe cases may need two to four days in the hospital, intensive care for shock, antibiotics if infection is suspected, and sometimes a feeding tube to keep nutrition going. Any underlying condition, such as inflammatory bowel disease or diabetes, is treated at the same time.

Outlook and prevention

Merck describes the outlook as good in mild cases, and VCA notes that mild acute cases generally do well with early treatment and most cats recover fully. Cats in shock or with severe disease have a guarded outlook. Repeated or severe episodes can occasionally lead to diabetes or to poor digestion from too few pancreatic enzymes, which can be managed.

Because most cases have no known trigger, pancreatitis cannot always be prevented. Managing linked conditions such as diabetes and inflammatory bowel disease, keeping your cat at a healthy weight, and getting prompt care whenever your cat stops eating give the best chance of catching it early.

This page is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your pet.