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患者诉有“便血”时,往往提示有消化道器质性病变,临床医师应予以重视。柏油便时出血部位在上消化道;棕褐色便时多来自小肠;而暗红色或鲜红色的血多由于结肠某些病引起。结肠部位有病时除便血
Patients complained of “blood in the stool”, often prompted organic diseases of the digestive tract, clinicians should pay attention. Bleeding when the site will be in the upper gastrointestinal tract; brown will often come from the small intestine; and dark red or bright red blood more due to certain diseases caused by the colon. In addition to blood in the colon when the stool