Diarrhea stool occult blood positive mainly consider upper gastrointestinal bleeding, hemorrhoids, intestinal inflammation and other conditions. 1. Upper gastrointestinal bleeding: patients with severe gastritis, gastric ulcer, resulting in gastric mucosal rupture bleeding, or cirrhosis of the liver leading to gastroesophageal blood vessel rupture bleeding, resulting in upper gastrointestinal bleeding, there will be a diarrhea fecal occult blood positive. 2. hemorrhoids: when the patient has hemorrhoids, diarrhea will lead to hemorrhoids at the mucous membrane detachment, blood outflow, the formation of fecal occult blood positive. 3. intestinal inflammation: when the patient’s intestinal inflammation is heavy, the intestinal wall edema, mucous membrane rupture is also easy to appear diarrhea fecal occult blood positive situation. There may be other reasons for diarrhea with positive occult blood, it is recommended to go to the hospital in time to improve the examination, to clarify the cause of the disease, and then give targeted treatment or treatment under the guidance of the doctor.