Bleeding in the stool for 2 consecutive days may be related to rectal-anal diseases, gastro-colonic diseases, blood diseases and other reasons. 1. Rectal-anal diseases: such as internal hemorrhoids, after normal defecation, did not feel obvious pain in the anus, but in the toilet paper or toilet bowl found bright red blood; such as anal fissure, defecation is often seen on the surface of the fecal matter or on the stool or drops of blood, accompanied by pain in the anus. Rectal-anal tube diseases lead to bleeding, there may be rectal polyps, rectal cancer, rectal prolapse, trauma, anal fistula and other diseases lead to. 2. Gastrointestinal diseases: such as ulcerative colitis can lead to mucus, pus and blood stools, which can be manifested as bleeding in the stool for 2 consecutive days. In addition, colon cancer, colon polyps, bacillary dysentery, amoebic dysentery, hookworm disease, gastric ulcer, esophagogastric varices, gastric cancer and other diseases. 3. Blood system diseases: blood diseases such as leukemia, hemophilia, thrombocytopenic purpura and other blood diseases lead to coagulation dysfunction, which may lead to bleeding in stool for 2 consecutive days. It is recommended to go to the hospital in time to clarify the cause of bleeding for 2 consecutive days, and carry out standardized treatment under the guidance of the doctor.