There are several reasons for blood in the stool of cats:

First, there are parasites in the body. If there are too many parasites in the body, the parasites can damage intestinal cells as they crawl in the intestines, causing intestinal bleeding.

Second, suffering from infectious diseases. Those who are not fully immunized by the vaccine will be infected with infectious diseases when the body's resistance is weakened, and the feline distemper virus can cause intestinal bleeding.

Third, gastrointestinal inflammation. Intestinal bleeding can also occur if the intestines are scratched by eating small bones or foreign objects.

Fourth, the problem of the anal sac. Anal sacs are pheromone glands located near the anus that bleed if inflamed, ruptured, or blocked. In this case, the cat may often experience abdominal pain.

5. Constipation is associated with hardened stools that damage the bowel wall and anal exit, eventually leading to bleeding.