Stool is not dry, blood in stool may be caused by pathological factors such as hemorrhoids, enteritis, rectal polyps, rectal tumors and other diseases. 1. Hemorrhoids: such as bleeding internal hemorrhoids, increased pressure at the anus during defecation caused by internal hemorrhoids local mucous membrane damage bleeding, manifested as painless blood in the stool, stool is not dry. 2. enteritis: such as ulcerative colitis, can be manifested as abdominal pain, mucus, pus and blood stool, diarrhea and other symptoms, stool is not dry. 3. Rectal polyps: when defecating, the stool passing through the polyp site may cause local capillary rupture, causing blood in the stool, but the stool is not dry, accompanied by abdominal pain, perianal pain and other symptoms. 4. Rectal tumor: such as rectal adenoma, rectal cancer, etc. may cause bleeding in stool, diarrhea and constipation alternately, and the stool is not dry. If the symptoms of non-dry stool and blood in stool occur, it is recommended to go to the hospital in time to find out the cause and then treat it actively so as not to delay the condition.