Bleeding stools with blood clots exist in the following possibilities: 1. Bleeding hemorrhoids, hemorrhoids are formed by varicose veins in the perianal plexus. The rupture of the blood vessels and the relatively large amount of bleeding can lead to bleeding in the stool with blood clots, which are relatively bright red in color. This is directly related to the difficulty in defecation and constipation. 2. Ulcerative colitis, which damages the mucosal surface of the intestine and leads to purulent stools with blood clots. 3. Gastrointestinal tumors, which break down and bleed more, can also lead to blood clots. In addition, systemic diseases can also lead to intestinal bleeding. Once there is bleeding stool with blood clots, go to the anorectal department of the hospital in a timely manner, through anorectal finger examination and anoscopy, to clarify the specific causes and then further targeted treatment.