What is the cause of bleeding in the lower abdomen?

Stool bleeding lower abdomen dull pain may be enteritis, intestinal polyps, bacillary dysentery and other factors caused. 1, enteritis may be caused by intestinal infection microorganisms, such as bacteria, viruses, fungi, etc., or due to abnormal immune system, intestinal damage caused by radiotherapy, mesenteric vascular obstruction and other factors, when the patient is cold, overworked, etc. may induce this disease, when sick may appear abdominal pain, bloody stool and other symptoms, so may appear stool bleeding, A dull ache in the abdomen. 2. Intestinal polyps are usually caused by the long-term stimulation of intestinal inflammation, which causes abnormal increase of mucosal epithelium or cells. It may also be because there are rectal cancer patients in the patient's family, thus increasing the risk of illness. Long-term constipation, alcoholism, smoking and other factors may induce this disease. Symptoms such as bloody stools and abdominal pain may occur during illness, so it may lead to stool bleeding. A dull ache in the abdomen. 3. Bacillary dysentery is generally caused by intestinal infection with Shigella. It may be caused by factors such as patients eating food and water contaminated by Shigella, contact with pollutants, etc., resulting in bacteria entering the digestive tract through their hands. When patients catch cold, overwork, eat raw and cold food, etc., factors may induce this disease. Fever, diarrhea, Abdominal pain, purulent bloody stool and other symptoms, so may cause stool bleeding, abdominal dull pain.