There are two major problems to consider when painless stool bleeding occurs. The first condition is upper gastrointestinal bleeding, which is mainly a large amount of bleeding in the upper gastrointestinal tract for a short period of time and can lead to painless bleeding in the stool. The second condition is lower gastrointestinal bleeding, which is more common and is often referred to as hemorrhoids, the most common being internal hemorrhoids, which are divided into four degrees, one degree 1 and 2, and are prone to painless bleeding, which is caused by the blood flowing out of the body due to the rupture of blood vessels. The actual bleeding can be relatively serious if it is from the upper gastrointestinal tract and can be life-threatening for a short period of time, and if it is from the lower gastrointestinal tract and rectum, early medication can be used to prevent massive bleeding causing shock.