Bright red blood usually comes from the lower colon or rectum, while dark red blood might mean bleeding higher up. Bloody diarrhea can be a symptom of anal fissures, hemorrhoids, or infections. Avoid ...

DEAR DR. ROACH: I am a 64-year-old female who is in moderate health. After a monthslong bout of diarrhea, blood work, and a colonoscopy, I’ve been diagnosed with microscopic colitis. After a round of ...

Acute hemorrhagic gastroenteritis is characterized by the sudden onset of bloody diarrhea and other gastrointestinal (GI) symptoms, like abdominal pain and nausea. In humans, acute hemorrhagic ...

Ulcerative colitis can lead to changes in your stool's texture, color, and smell. You may notice increased bowel movement frequency, which can disrupt your daily life and sleep. Frequent diarrhea and ...

Discovering blood in your stool can trigger immediate anxiety and concern, but understanding what this symptom means helps distinguish between minor issues and serious conditions requiring prompt ...

Please provide your email address to receive an email when new articles are posted on . A 65-year-old woman presents for evaluation of a 6-month history of chronic diarrhea. She has generally been ...