In most cases, blood in a cat’s stool appears as red or pinkish fresh droplets. This condition is known as hematochezia and shows that the blood is coming from the lower sections of the GI tract.
Sometimes, however, you’ll notice that your cat’s stool is black and tarry. This is a symptom of a condition known as melena. So, what is melena in cats?
Melena also shows that there is blood in your cat’s stool. However, this blood appears black in color because it has already been digested. The digested blood signifies that the bleeding is happening upper along the gastrointestinal tract, such as in the stomach or small intestines.
As a result, melena is usually more serious than hematochezia. Cats with black, tarry stool should be taken to a vet immediately. Melena could be a sign of serious conditions such as…
Black and tarry cat stool could be a symptom of stomach ulcers, which result in bleeding. As the blood moves from the stomach to the small intestines and then to the colon, it gets partially digested, resulting in the darkish color.
Oral Or Respiratory Tract Bleeding
If your cat is bleeding either in the respiratory tract or the oral cavity, this blood will get ingested, get digested as it passes through the GI tract and get passed as black stool. Such bleeding, especially in the respiratory tract, could be a sign of a serious underlying condition.
Melena can also be a sign of intestinal bleeding, trauma, stomach lining inflammation, or tumors.