I used to have yellow stool with some black small flakes since a year ...with 10 kg of weight loss I underwent endoscopy of upper GI Aftef that i defaecated two times in next 24 hours Stool was totally bloody and loose Is it norml to have bloody diarhhea after endoscopy ? Biopsy was done on D2 Was that bloody stool due to biopsy or wt else?? As before endoscopy i never had this much bloody diarrrhea