A 21-year-old male asked:
Black stool this morning. was not tarry, didnt disperse in the water. i poop an hour later, it was dark brown, not black. had pepto on wed. & thurs.
1 doctor answer • 1 doctor weighed in

Dr. Donna Childressanswered
Internal Medicine 23 years experience
Likely Pepto Bismol (bismuth subsalicylate): Pepto Bismol (bismuth subsalicylate) can cause a change in the color of stool and turn it black. As long as you are not otherwise noticing any significant associated symptoms like abdominal pain, change in bowel habits, this is not a worrisome concern.
Created for people with ongoing healthcare needs but benefits everyone.
1.1k viewsAnswered >2 years ago
Last updated Jul 23, 2016
People also asked
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits - just $44!
50% off with $15/month membership
Disclaimer:
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.