Fire will lead to blood in the stool, the main reason for the formation of this phenomenon is that there are two aspects: 1, the existence of internal hemorrhoids, internal hemorrhoids in the anus rectum within the mild internal hemorrhoids mainly manifested as bleeding, presenting a drip bleeding or spray. As a result of dietary disorders, eat spicy, stimulating food or drinking too much alcohol and thus lead to fire, dampness and heat injected into the anus is often manifested as bleeding hemorrhoids. 2, due to fire caused by hard and dry stools are difficult to discharge outside of the anus, the coarse and hard stools on the anus mucous membrane caused by stimulation, damage to the formation of fissures will lead to a small amount of blood in the stools. Both of these conditions can mislead the patient into thinking that there is blood in the stool, when in fact it is an acute attack of anal disease caused by fire. Mild symptoms can be relieved by applying medications that remove heat and toxins, reduce swelling and relieve pain, while severe cases require surgery.