Comparison of the color of fecal blood with the anatomical location of gastrointestinal bleeding lesions: potential misdiagnosis using only flexible sigmoidoscopy for bright red blood per rectum - ScienceDirect
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Thought I was pooping, but bright red blood came out instead : r/AskDocs
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Twitter 上的 Sundeep jain："Bright red blood usually means bleeding that's low in your colon or rectum. Dark red or maroon blood can mean that you have bleeding higher in the colon or
Bowel cancer symptoms: Blood in stool and red poo could be signs | Express.co.uk
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