Black stools are mainly caused by physiological factors, gastrointestinal bleeding and other pathologic factors.
1. Physiological factors: when recently eat too much blood products, such as duck blood, sheep blood, eat too much spinach, there will be black poop.
2. Gastrointestinal bleeding: when the patient has gastric ulcer, duodenal ulcer, gastric mucous membrane injury, esophagogastric fundal varices rupture bleeding, gastrointestinal tract tumor bleeding, etc., there will be black stools, blood in the intestinal tract through the role of sulfurization can be manifested as black stools, you can do the fecal occult blood to clarify whether it is a gastrointestinal hemorrhage, and then further to do the gastroscopy, colonoscopy, abdominal CT and other examinations to clarify the cause of the disease.
Black stool, there may also be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.