Cat Hepatic Lipidosis: Fatty Liver Disease in Cats

Hepatic lipidosis is the most common liver disease in cats, triggered by even short periods of food restriction, and can be rapidly fatal without intensive nutritional support.

Key Facts

Hepatic lipidosis occurs when cats mobilize fat stores too rapidly during food restriction, overloading the liver
Any period of anorexia lasting more than 24-48 hours in cats can trigger the condition
Obese cats are at significantly higher risk because they have more fat to mobilize
The condition can develop secondary to any illness causing appetite loss, including stress
Clinical signs include jaundice, vomiting, lethargy, drooling, and hepatic encephalopathy
Treatment requires aggressive nutritional support via feeding tube for weeks
Survival rates with appropriate treatment are approximately 60-80%

Welfare Considerations

Hepatic lipidosis is particularly cruel because it is often triggered by stress or illness, then creates a vicious cycle: the cat feels ill and stops eating, which causes liver damage, which makes them feel worse. Affected cats experience profound nausea, jaundice, and neurological symptoms from liver failure. Treatment requires placement of a feeding tube and weeks of assisted feeding - stressful for both cat and owner. Cats in boarding facilities, new homes, or experiencing other stressors are at elevated risk. The condition highlights the critical importance of monitoring a cat's food intake daily and acting quickly when appetite decreases.

What You Can Do

Monitor your cat's food intake daily, especially during stressful periods or after illness
Seek veterinary care promptly if your cat stops eating for more than 24 hours
Manage your cat's weight to reduce hepatic lipidosis risk during any illness
If your cat is boarded, ensure the facility monitors daily food consumption carefully
Understand that hepatic lipidosis is a medical emergency requiring immediate aggressive treatment