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便鲜红血呈点滴...、痢疾、上消化道出血、肠出血、黑便、老人便秘、结肠息肉、粪便排出过程异常、经期便血
Hematochezia is passage of bright red/maroon blood per rectum, indicating lower-GI bleeding (diverticulosis/angiodysplasia/hemorrhoids/IBD/ischemic colitis/tumor), or brisk upper-GI bleed. Treatment: resuscitation (IV fluids/blood transfusion); stabilize; bowel prep; colonoscopy for localization/therapeutic control (clipping/cautery/epinephrine); mesenteric angiography with embolization if colonoscopy fails; surgical resection if massive/recurrent; PPI empirically if upper-GI source suspected; monitor vitals/hemoglobin; follow-up.
Bright red/maroon blood per rectum; by diverticular/angiodysplasia/IBD/hemorrhoids
Lower-GI mucosal vascular bleeding causes fresh blood.
Resuscitation; colonoscopy/angiography; surgery if massive
Treat diverticulosis/IBD; early evaluation of rectal bleeding.
It is recommended to visit the Gastroenterology/Emergency/Gastrointestinal-surgery department; an appointment can be booked on this platform before the visit.
Warm reminder: The above information is for health science reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek medical attention at a regular hospital promptly.
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