Anemia with occult blood in stool is not necessarily bowel cancer, but may also be caused by colitis, gastrointestinal bleeding, hemorrhoids and other reasons. 1. Colitis: colitis caused by inflammation of bacteria, viruses, fungi or parasites can be manifested as abdominal pain, diarrhea, mucus, pus and blood stools in clinic, and these sources of infection lead to inflammation of intestinal mucosa, and mucosal damage may be accompanied by fecal occult blood and anemia. 2. Gastrointestinal bleeding: anemic patients check fecal occult blood is mainly to find some digestive bleeding disorders, which belongs to the examination of the cause of anemia, used to carry out targeted treatment. Gastrointestinal bleeding is more common, patients may appear anemia fecal occult blood symptoms. 3. Hemorrhoids: the heavier internal hemorrhoids appear multiple bleeding points, the use of ointment or conservative treatment is not ideal, the bleeding time is longer, or even like the female menstruation comes and does not go, the long-term cause of blood loss, it is likely to trigger the patient’s anemia fecal occult blood. When the patient anemia fecal occult blood, there is no need to be anxious, under the guidance of the doctor to carry out relevant examinations, and active treatment can be.