CONDITION
Chronic Pancreatitis
Chronic pancreatitis describes ongoing inflammation in the pancreas that persists or recurs over time. The pancreas sits near the stomach and small intestine, producing enzymes that help digest food and hormones that regulate blood sugar. When inflammation becomes a long-term pattern, the normal tissue can be gradually replaced by scar tissue, which may affect how well the organ works. Owners often arrive at this page because their dog or cat has had repeated episodes of digestive upset—vomiting, reduced appetite, weight loss, or abdominal discomfort—that seem to settle and then return. In cats particularly, the signs can be subtle and build slowly over months. The condition can exist on its own or alongside other problems affecting the liver or intestines. This page explores the signals that may suggest chronic pancreatitis, what is happening in the tissue over time, how the condition is investigated through blood tests and imaging, and the range of approaches used to manage it. The goal is to help you understand what this diagnosis means and what shape care may take.
Why this matters now
Chronic pancreatitis can appear at any age, though it tends to be recognised more often in middle-aged and older animals. In cats, the condition is seen across many breeds and mixed-breed populations, often developing quietly over months or years. In dogs, certain breeds—including Miniature Schnauzers, Cocker Spaniels, and some terrier types—appear more prone, and repeated episodes may follow dietary indiscretions or metabolic disturbances. The condition can also emerge alongside other inflammatory problems affecting the liver or intestines, particularly in cats.
The pattern is typically one of slow, fluctuating change rather than a single crisis. Some animals experience intermittent flare-ups separated by weeks or months of relative calm, while others show a more gradual decline in appetite, weight, and energy. Over time, repeated inflammation can lead to permanent scarring and reduced function, though the rate and extent of this damage varies widely between individuals. The course is often unpredictable, and periods of stability can be interrupted by setbacks that may or may not have an obvious trigger.
Signals & patterns
Early signals
Intermittent reduced appetite
The animal may eat normally for days or weeks, then become less interested in food for a stretch before recovering. This waxing and waning pattern can be subtle, especially in cats, who may simply spend longer at the bowl or eat smaller portions without refusing food outright.
Occasional vomiting
Vomiting may occur once or twice over several days, then disappear for a period. The episodes may not follow a clear pattern and can be mistaken for hairballs or minor dietary upset, particularly if the animal otherwise seems well.
Quiet abdominal discomfort
Some animals adopt a hunched posture, avoid being picked up around the middle, or seem restless after eating. In cats, discomfort is often expressed through withdrawal or a reluctance to jump rather than obvious signs of pain.
Gradual weight loss
Weight may drop slowly over weeks or months, often noticed only when comparing the feel of the ribs or spine to earlier photos. The change can be masked by a normal coat or the animal's usual body shape, making it easy to overlook until it becomes pronounced.
Softer or variable stools
Faeces may become less formed or change consistency from day to day, though diarrhoea is not always present. The variation may coincide with periods of reduced appetite or vomiting, or it may appear on its own.
Later signals
Persistent poor appetite
The animal may show little interest in food for days at a time, or eat only small amounts despite encouragement. This can progress to near-total refusal, particularly in cats, where prolonged inappetence carries additional metabolic risks.
Visible weight loss and muscle wasting
Loss of body condition becomes obvious along the spine, hips, and shoulders. Muscle over the skull and limbs may also diminish, giving the animal a gaunt appearance even if the coat remains in reasonable condition.
Ongoing digestive upset
Vomiting, diarrhoea, or both may occur more frequently and with less respite between episodes. The animal may also show signs of nausea—drooling, lip-licking, or reluctance to move—without necessarily vomiting.
Low energy and withdrawal
The animal may spend more time resting, show less interest in play or interaction, and move more slowly. In cats, this can include hiding more often or choosing spots that are quieter and less accessible than usual.
Click to read about the biological mechanisms
How this is usually investigated
Options & trade-offs
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