What Are Cecotropes in Rabbits?

Cecotropes are special soft, nutrient-rich droppings that rabbits produce and then eat directly from their bottom, usually in the early morning or overnight. They are completely different from the dry, round fecal pellets you see in the litter box. Cecotropes form in a part of the gut called the cecum, where beneficial bacteria ferment fiber into vitamins, proteins, and other nutrients. By eating them, rabbits absorb those nutrients on a second pass through the digestive system. It is a normal, healthy, and essential part of how rabbits stay nourished.

Yes, eating cecotropes is completely normal and necessary for rabbits, even though it can look surprising to new owners. This behavior, called cecotrophy, lets rabbits extract nutrients that were not fully absorbed the first time food passed through. Cecotropes are not the same as ordinary droppings; they are a soft, clustered, nutrient-packed product the rabbit's body makes specifically to be re-eaten. A healthy rabbit usually consumes them directly from the source, so you may rarely even see them. Preventing a rabbit from doing this would harm its nutrition.

Cecotropes look quite different from normal rabbit droppings. Instead of the dry, round, evenly sized fecal pellets, cecotropes are soft, shiny, and clustered together like a small bunch of grapes or a tiny mulberry. They are darker, stickier, and have a stronger smell, often with a mucus coating. Because rabbits usually eat them straight away, you may seldom see them. If you regularly find uneaten cecotropes squashed in the enclosure or stuck to your rabbit's bottom, that is worth investigating, since it often points to a diet or health issue.

Uneaten cecotropes, sometimes smeared in the enclosure or stuck to the fur, usually signal that something is off. The most common cause is a diet too rich in pellets, treats, or sugary foods and too low in hay, which makes the rabbit produce excess cecotropes it does not bother to eat. Obesity, dental pain, arthritis, or other illness that makes it hard to reach the bottom can also be to blame. Because the causes range from simple diet fixes to medical problems, persistent uneaten cecotropes deserve a rabbit-savvy vet's input.

This is an important distinction. Cecotropes are a normal, formed product, soft and clustered like grapes, that a rabbit makes on purpose and eats. True diarrhea, where droppings are watery and unformed, is rare in adult rabbits and is a serious emergency that needs immediate veterinary care. What owners sometimes mistake for diarrhea is actually intermittent soft cecotropes from a diet too high in sugars and starches. If your rabbit has genuinely watery, liquid stool, do not wait: contact a rabbit-savvy or exotic vet right away.

Diet has a huge influence on cecotrope production. A diet built on unlimited grass hay, with measured pellets and limited treats, produces the right balance, and a healthy rabbit eats its cecotropes cleanly. Too many pellets, fruit, or starchy treats throws off the gut bacteria and leads to excess, mushy cecotropes the rabbit leaves behind. If you see uneaten cecotropes, the first step is usually to increase hay and cut back on pellets and treats, ideally with guidance from a rabbit-savvy vet to rule out other causes.

Producing and eating cecotropes is a sign of a normally functioning rabbit digestive system, so in that sense yes. A healthy rabbit on a good hay-based diet makes the right amount and consumes them so efficiently you rarely notice. The system working smoothly reflects good gut health and good nutrition. What is not a good sign is finding lots of uneaten cecotropes, which suggests a diet or health problem. So the presence of cecotrophy is healthy, but a buildup of leftover cecotropes is a flag worth acting on.