Now that you have a clean bunny, you will need to assess the cause of the messy bottom so it doesn’t happen again. In general, rabbits do not suffer from true diarrhea. Instead, the fecal mess you’re probably seeing is uningested cecotropes. Rabbits excrete two different forms of feces. Most people are familiar with the hard, dry fecal pellets that a well-trained bunny will dispense into a litter box. But rabbits also excrete cecotropes, a softer, wetter fecal matter that they normally reingest directly from their behinds. Eating cecotropes, or coprophagy, is a healthy activity for rabbits that helps keep their digestive tracts in balance. In this way, rabbits also glean an optimum amount of nutrients from their food. more