Human stool bleeding can be hemorrhoids, colorectal cancer, ulcerative colitis, acute dysentery, ischemic colitis, etc. It can be clearly diagnosed through colonoscopy or blood routine examination, stool routine examination, blood tumor related indicators, etc. If it is bloody stool after hard stool, it may be hemorrhoid bleeding; If accompanied by abdominal pain, diarrhea, mucopurulent bloody stool, it may be caused by ulcerative colitis, or colorectal cancer; If fresh blood stool occurs after severe abdominal pain, it may be ischemic colitis; If accompanied by fever, nausea, vomiting, anorexia, fatigue, shock and other sepsis symptoms, it may be caused by acute dysentery. The above examinations can be used to make a clear diagnosis before targeted treatment.
