Petopedia

Pancreatitis in Dogs: Signs, Treatment and Prevention

7 min read. Updated 3 October 2026.DogsTummy upsets
A Yorkshire Terrier

In short

Pancreatitis is inflammation of the pancreas, an organ that helps digest food. It can flare up suddenly or rumble on over time, and it can be severe, so if your dog is vomiting, has belly pain or won't eat, see a vet promptly.

At a glance

What it is Inflammation of the pancreas, which can be sudden (acute) or long-lasting (chronic)
Who's at risk Any dog, but more often middle-aged and older dogs, overweight dogs, dogs that scavenge or eat fatty food, and some breeds
Main signs Vomiting, belly pain, a hunched or "praying" posture, not eating, diarrhoea, lethargy
Contagious? No
Can it be prevented? Not always, but avoiding fatty foods and scraps and keeping your dog at a healthy weight lowers the risk

What it is

The pancreas is a small organ that sits close to the stomach and the first part of the intestine. It has two main jobs. It makes digestive enzymes that help break down food, and it makes hormones, including insulin, that control blood sugar.

Normally, the digestive enzymes stay inactive until they reach the intestine. In pancreatitis, they become active too early, while still inside the pancreas, and start to irritate and damage the organ itself. This causes inflammation, swelling and pain. In severe cases, the inflammation can spread and affect other organs too.

Pancreatitis comes in two broad forms:

  • Acute pancreatitis comes on suddenly. It can range from a mild upset to a serious, life-threatening illness.
  • Chronic pancreatitis is ongoing, low-level inflammation that may cause repeated, milder flare-ups over months or years. Over time, it can affect how well the pancreas works.

Often, a clear cause is never found. However, some things are known to make it more likely:

  • Eating fatty food — a plate of leftovers, roast dinner trimmings, sausages, cheese, butter or barbecue scraps
  • Scavenging from bins, picnics, compost or on walks
  • Being overweight
  • Certain other health conditions, such as hormonal disorders
  • Some medicines
  • Breed — some breeds, including miniature schnauzers, appear more prone

Pancreatitis is linked with other conditions too. Repeated or long-term inflammation can, in some dogs, lead to diabetes or to the pancreas not producing enough digestive enzymes.

Signs to watch for

Signs can be vague and are shared with many other tummy problems. They include:

  • Vomiting, sometimes repeatedly
  • Belly pain — your dog may flinch or guard their tummy when touched
  • A hunched back, or a "praying" posture, with front legs stretched forward and chest down while the back end stays raised
  • Not eating, or showing interest in food and then walking away
  • Diarrhoea, which may be greasy or pale
  • Lethargy, weakness or seeming withdrawn
  • Restlessness, or being unable to settle
  • Fever, or signs of dehydration such as dry gums

Some dogs, especially those with the chronic form, may only show mild, on-and-off signs, such as an occasional poor appetite, quietness or a tummy upset now and then.

Our symptom checker and guide on when vomiting needs a vet can help you understand what you're seeing, but pancreatitis can't be confirmed at home.

When to see a vet

See a vet promptly if your dog is vomiting more than once, seems to have belly pain, adopts a hunched or praying posture, refuses food, or is unusually tired. Pancreatitis can become severe quickly, and early treatment helps.

Contact your vet or an emergency vet straight away if your dog:

  • Is vomiting repeatedly or can't keep water down
  • Is in obvious pain, trembling or crying
  • Is very weak, collapses or has pale gums
  • Has blood in their vomit or diarrhoea
  • Has a swollen or tight belly
  • Is a puppy, an elderly dog, or has diabetes or other existing health problems

If you know your dog has recently eaten something fatty or raided the bin, tell your vet. That information can be very helpful.

How vets diagnose it

Diagnosing pancreatitis involves piecing together several clues, because no single test is perfect. Your vet will ask about your dog's signs, diet and any recent scavenging or treats, and examine them, gently feeling the belly and checking hydration and temperature.

Blood tests are important. There is a specific test that looks for signs of pancreatic inflammation, and general blood tests show how your dog's other organs are coping, whether they are dehydrated, and whether anything else is going on.

Scans are often used as well. An ultrasound scan of the belly can show changes in and around the pancreas and help rule out other problems such as a blockage. X-rays may also be taken, mainly to look for other causes of the signs.

Treatment and management

There is no single cure for pancreatitis. Treatment aims to support your dog's body, control pain and nausea, and give the pancreas time to settle. What your dog needs depends on how severe their illness is.

Hospital care may be needed for moderate or severe cases. This can include:

  • Fluids through a drip to correct dehydration and support circulation
  • Pain relief — pancreatitis can be very painful, and good pain control is a priority
  • Anti-sickness medicine to control vomiting and nausea
  • Nutritional support, with food being reintroduced early in small amounts once vomiting is controlled, sometimes through a feeding tube
  • Monitoring of blood results and close nursing, especially in severe cases

Dogs with mild pancreatitis may be able to be treated at home with medicines and a careful diet, under close guidance from your vet.

Diet is a key part of long-term management. Your vet is likely to recommend a low-fat diet, either a prescription food or one they advise on. Some dogs need this for a short time while they recover; others, especially those with chronic pancreatitis or repeated flare-ups, may need it for life. Stick closely to your vet's advice, and talk to them before switching foods.

Prevention

You can't prevent every case, but you can make a real difference:

  • Avoid fatty scraps and table food. Even one rich meal can trigger a flare-up in some dogs. Make sure visitors and children know not to share food.
  • Stop scavenging. Use secure bins, keep food off counters, and watch your dog closely on walks, at barbecues and around picnics.
  • Keep your dog at a healthy weight. Our guide to obesity in pets explains why this matters.
  • Choose treats carefully, and ask your vet about low-fat options if your dog has had pancreatitis before.
  • Take care at festive times, when rich foods are everywhere. Our toxic foods guide also covers foods that are dangerous for dogs for other reasons.

Living with it

Many dogs recover fully from a single mild episode. Others go on to have repeat flare-ups or chronic pancreatitis, and need ongoing care.

If your dog has had pancreatitis:

  • Follow your vet's diet advice consistently, including for treats and chews.
  • Feed smaller meals if your vet suggests it.
  • Learn your dog's early warning signs — for many it starts with a skipped meal or a quieter day — and contact your vet early if they appear.
  • Keep up with check-ups and any blood tests your vet recommends, particularly as some dogs later develop diabetes or digestive enzyme problems.
  • Keep a simple diary of appetite, energy, vomiting and stools. This can help you and your vet spot patterns and triggers.

With careful feeding, a healthy weight and quick action when signs appear, most dogs with pancreatitis can live full, comfortable lives.

Written by the Petopedia editorial team to our editorial standards. This is general information, not veterinary advice — if you're worried about your pet, contact your vet.