U.S. doctors online nowAsk doctors free
NJ
A 61-year-old male asked:

Good morning doctors. i had a colonoscopy at the end of last october, 2020..no colon cancer only diverticulosis. lately my stool is dark brown to almost black, but not quite black. what may this be?

1 doctor answer1 doctor weighed in
Dr. Silviu Pasniciuc
Internal Medicine 29 years experience
Diet, meds and non specific bleeding from upper gi tract are commonly involved in changing stool color in black. Not all black stools are due to bleeding and black stools are not diagnostic for specific pathology, such as cancer. Your gastroenterologist or PCP would be best to place your findings in clinical context.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Nov 10, 2021

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.