U.S. doctors online nowAsk doctors free
Hampton, GA
A 52-year-old female asked:

what causes stool to be black?

2 doctor answers6 doctors weighed in
Dr. Heidi Fowler
Psychiatry 25 years experience
Black Stool: can be related to taking medications (like pepto bismal). If the stool is black, stinky and sticky - it may be due to rectal bleeding (melena). If that is the case - it should be promptly medically evaluated. Take care.
Dr.
A Verified Doctoranswered
A US doctor answeredLearn more
See doctor ASAP: Black tarry stools can be caused by bleeding from upper portions of digestive system or certain medications like iron supplements and bismuth based medications . Please go and see your doctor urgently .

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
$30 per visit with
membership

Similar questions

San Rafael, CA
A 57-year-old female asked:

What is are causes of black, grainy stool?

1 doctor answer1 doctor weighed in
Dr. Gina Cadena-forney
Family Medicine 21 years experience
Upper bleed: Black stool is usually the result of an upper digestive bleeding. Blood turn black after traveling the digestive tract. You should see your doctor and discuss having an endoscopy.
A 36-year-old member asked:

Does red wines cause black tar stool?

1 doctor answer2 doctors weighed in
Dr. Diane Minich
Family Medicine 37 years experience
See below: Red wine in itself will not cause a black tarry stool.But alcohol can cause GI bleeding which will give black tarry stools. If you have black tarry stools get medical attention immediately.
A 32-year-old member asked:

What can cause black streaks in stool?

1 doctor answer1 doctor weighed in
Dr. Heidi Fowler
Psychiatry 25 years experience
Possibly: Due to blood, iron, bismuth meds or certain foods.
A 34-year-old member asked:

What is the cause of black slimy stool?

1 doctor answer3 doctors weighed in
Dr. Heidi Fowler
Psychiatry 25 years experience
Get eval: Some causes of stool being black include taking medications that contain bismuth or eating foods or supplements that contain iron. Stool that is black, tarry and smells bad can be melena. Melena is due to GI bleeding. Recommend prompt medical evaluation.
MA
A female asked:

What causes black grit in stools ?

1 doctor answer2 doctors weighed in
Dr. Charles Cattano
Gastroenterology 39 years experience
Seeds, blood...: Dark-colored stools may result from iron supplements, foods you eat (like a lot of spinach), substances (like peptobismol), but most significantly suggests bleeding. When blood is denatured by acid in your stomach, as from ulcers, stools will turn tarry ("melena"). Blood may also be ingested from nose bleeds, bleeding gums... Persistent melena (without obvious cause) & symptoms warrants doc visit.

Related questions

A 40-year-old member asked:
1 doctor answer1 doctor weighed in
A 32-year-old female asked:
1 doctor answer2 doctors weighed in
A 21-year-old male asked:
1 doctor answer4 doctors weighed in

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
$30 per visit with
membership
Last updated Aug 7, 2020

People also asked

Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
$30 per visit with
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.