Coprophagia is the act of eating and ingesting feces. Although far more common in dogs, it does appear occasionally in cats. There are times when eating feces is part of normal feline behavior. A new mother will often eat the feces of her newborn kittens as part of her daily grooming routine, while her kittens may copy her in an effort to learn new behaviors. Cats may also eat their own feces as a way of keeping their personal areas clean.
Oftentimes, however, coprophagia is the result of an underlying medical condition that can lead to an extreme increase in appetite. In order to satisfy this extreme hunger, cats will eat anything available to them, including their feces. The most common medical conditions are parasites, diabetes, inflammatory bowel disease, anemia, vitamin deficiency, malnutrition, thyroid disease and neurological disease.