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ModerateSee Vet Soon🫄 Digestive SystemCat

Feline Pancreatitis

Inflammation of the pancreas, often occurring alongside intestinal and liver disease (triaditis). Unlike dogs, cats often show vague signs — lethargy and decreased appetite rather than vomiting.

Last updated: 2026-05-06

Severity

moderate

When to Act

See Vet Soon

Symptoms & Signs

Decreased appetite

Often the first and most consistent sign. May be complete anorexia.

Always present

Lethargy

Cat sleeps more, hides, shows little interest in surroundings.

Always present

Weight loss

Gradual body mass loss over weeks.

Very common

Vomiting

Less common than in dogs; may be intermittent.

Sometimes occurs

Abdominal pain

Often subtle in cats — may only show as hiding or irritability.

Sometimes occurs

Jaundice

Yellowing of gums, skin, or eyes if concurrent liver/bile duct involvement.

Sometimes occurs

Behavioral Changes to Watch For

Pets can't tell us what's wrong. These behavioral changes are often the first clues that something is wrong.

🐾 Hiding and withdrawal

Cat seeks isolation — classic sign of illness in cats.

What You May Notice:

Your normally social cat spends the day under the bed and doesn't come out for meals.

🐾 Decreased grooming

Cat stops its normal fastidious self-care.

What You May Notice:

Fur looks greasy, unkempt, or matted.

Causes & Risk Factors

Causes

  • •Often idiopathic (unknown cause)
  • •Associated with inflammatory bowel disease (IBD)
  • •Triaditis: concurrent pancreatitis, cholangiohepatitis, and IBD
  • •Trauma (high-rise syndrome)
  • •Certain medications or toxins
  • •Infections (Toxoplasma, FIP, calicivirus)

Risk Factors

  • ⚠Cats of any age — but middle-aged to older cats more affected
  • ⚠Cats with IBD
  • ⚠Indoor cats may have higher incidence (hypothesized)

How It's Diagnosed

  • 1fPLI (feline pancreatic lipase immunoreactivity) — SNAP fPL test is most specific
  • 2Abdominal ultrasound — enlarged, hypoechoic pancreas with surrounding hyperechoic mesentery
  • 3Blood work: may see elevated liver enzymes if triaditis
  • 4Radiographs — low sensitivity but rule out other causes

Treatment Options

procedure

Fluid Therapy and Supportive Care

IV fluids to maintain pancreatic perfusion and correct dehydration.

Steps

  1. 1.IV crystalloid fluids
  2. 2.Anti-emetics (maropitant) if vomiting
  3. 3.Appetite stimulants (mirtazapine)
  4. 4.Nutritional support: feeding tube (esophagostomy or nasoesophageal) if not eating voluntarily
  5. 5.Pain management (buprenorphine)

Expected Outcome

Gradual improvement over 3-7 days in most cases.

Precautions

  • !Hepatic lipidosis can develop rapidly in anorexic cats — early nutritional support is critical
dietary

Nutritional Management

Cats MUST eat — prolonged anorexia leads to fatal hepatic lipidosis.

Steps

  1. 1.Esophagostomy feeding tube if cat refuses food >48 hours
  2. 2.Highly digestible liquid diet
  3. 3.Small, frequent meals
  4. 4.Transition to novel protein or hydrolyzed diet if concurrent IBD

Expected Outcome

Prevents hepatic lipidosis and supports recovery.

Precautions

  • !Never let a cat go without eating more than 48-72 hours

Common Medications Used

MedicationUsageImportant Notes
Maropitant (Cerenia)Antiemetic with additional analgesic propertiesUseful for vomiting and visceral pain.
MirtazapineAppetite stimulantTransdermal gel. Essential for maintaining food intake.

Prevention

  • ✓No specific prevention
  • ✓Manage concurrent IBD
  • ✓Avoid high-fat treats
  • ✓Prompt treatment of gastrointestinal symptoms

When to See a Veterinarian

  • ⚠️Cat stops eating for more than 24 hours
  • ⚠️Lethargy + decreased appetite together
  • ⚠️Vomiting + lethargy
  • ⚠️Jaundice

Frequently Asked Questions

Why is feline pancreatitis harder to diagnose than canine pancreatitis?
Cats show vague, non-specific signs — mostly just lethargy and not eating. They don't typically show the dramatic vomiting and "praying position" that dogs do. A high index of suspicion and specific testing (fPLI) are often needed.

Prognosis

Generally good with appropriate supportive care. Recurrence is common. Chronic pancreatitis can lead to exocrine pancreatic insufficiency (EPI) or diabetes mellitus.

References

  • [1] ACVIM — Feline Pancreatitis Consensus
  • [2] JVIM — Feline Pancreatitis Management

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