Fecal Abnormalities in Rabbits A rabbit’s fecal output provides important information about its diet and digestive health. You should evaluate the size, shape, texture, moisture, quantity, and frequency of the feces, not color alone. Normal Fecal Pellets: Normal rabbit feces should be round, dark brown to black, and approximately ¼–½ inch in diameter, depending on the rabbit’s size. The pellets should be very firm but slightly moist. When squeezed, they should break apart without crumbling into dry powder. Light-Colored “Golden” Feces: Pale, dry, coarse feces are not proof of perfect digestive health. “Golden poo” generally indicates that the rabbit is consuming excessive amounts of indigestible fiber. More fiber is not always better. Long, Oddly Shaped, Soft or Sticky Feces: Large, elongated, misshapen, soft, or sticky feces indicate abnormal digestive function. Persistent irregular feces may be associated with altered intestinal motility or conditions such as megacolon and should not be dismissed as normal variation. Stringy Feces: Pellets may occasionally become connected by swallowed hair, particularly during a heavy molt. Repeated strings, smaller pellets, reduced fecal output, loss of appetite, or abdominal discomfort require closer attention. White or Clear Mucus: Mucus coating the feces or passed without fecal material indicates intestinal irritation. This is abnormal, especially when it is persistent or accompanied by reduced appetite, pain, bloating, or changes in fecal output. Diarrhea: True diarrhea is unformed, watery fecal material without distinct pellets. It is not the same as uneaten cecotropes. True diarrhea is an emergency, particularly in young rabbits, because dehydration and systemic illness can develop rapidly.