GREASY OR OILY STOOL (STEATORRHEA)
WHAT THIS SYMPTOM USUALLY MEANS
Greasy, oily, or shiny stool (steatorrhea) means fat is not being absorbed properly. This is almost always due to pancreatic insufficiency, food intolerance, or GI malabsorption.
MOST COMMON CAUSES
MILD CAUSES
• High-fat diet
• Sudden diet change
MEDICAL CAUSES
• Exocrine pancreatic insufficiency (EPI)
• Food intolerance
• IBD
• Pancreatitis (chronic)
• Liver/bile duct disease
• Dysbiosis
EMERGENCY CAUSES
• Severe malabsorption + weight loss
• Oily stool + lethargy
• EPI in advanced stages (life-threatening without treatment)
RED FLAGS: WHEN THIS IS AN EMERGENCY
• Weight loss
• Muscle wasting
• Chronic diarrhea with grease
• Vomiting + greasy stool
• Very foul-smelling stool
AT-HOME CARE YOU CAN START NOW
• Switch to easily digestible diet
• Avoid fatty foods
• Add probiotics
• Hydration support
WHAT A VETERINARIAN WILL CHECK
• Pancreatic enzyme test (TLI)
• Fecal analysis
• Bloodwork (liver, pancreas)
• Ultrasound
• Diet evaluation
MOST LIKELY DIAGNOSES
• EPI (most common)
• IBD
• Pancreatitis
• Food intolerance
• Liver/bile duct disease
BREEDS OR AGES AT HIGHER RISK
• German Shepherds (EPI)
• Collies
• Senior pets
WHEN YOU SHOULD SCHEDULE A VETERINARY VISIT
• Within 24–72 hours
• Immediately if weight loss is rapid
EXPECTED RECOVERY TIME
• EPI requires lifelong enzyme therapy
• Food intolerance: days–weeks
• Liver/pancreas disease: variable
HOW THIS SYMPTOM RELATES TO LONGEVITY
Chronic malabsorption starves the body of essential nutrients, accelerating aging and weakening immunity.
WHEN TO CONSIDER A LONGEVITY CONSULT
• Chronic greasy stool
• Weight loss
• Senior pets
• Suspected pancreatic disease