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what does very dark stool indicate

A 39-year-old member asked:
Dr. Charles Cattano
38 years experience in Gastroenterology
Lots to consider...: Color & texture of stool varies with foods, speed of emptying of the GI tract, medications & supplements ingested, gut flora (unique for each individu ... Read More
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A 47-year-old member asked:
Dr. Heidi Fowler
24 years experience in Psychiatry
Black stool: Black stools can be due to medications that contain either iron or bismuth, eating certain foods (like black licorice), Gastrointestinal bleeding or i ... Read More
A 48-year-old member asked:
Dr. Erik Borncamp
24 years experience in Wound care
Probably nothing: But there are many causes of dark stools (blood, meds, diet, etc) . Fortunately it is easy to tell by bringing a small sample to your md to test for ... Read More
A 37-year-old female asked:
Dr. Erik Borncamp
24 years experience in Wound care
It could...: But there are many other non-blood causes of dark stools (meds, diet, etc) . Fortunately it is easy to tell by bringing a small sample to your md to ... Read More
A 41-year-old female asked:
Dr. Michael Samach
49 years experience in Gastroenterology
Several possibilitie: Stool can be dark from iron pills pepto bismol (bismuth subsalicylate) or foods like spinach. Black tarry stools may indicate bleeding from the stomac ... Read More
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A 68-year-old male asked:
Dr. Jason Hemming
16 years experience in Gastroenterology
Depends: If melena (black, tarry) this may represent bleeding. Otherwise likely a consequence of what you consumed.
A 39-year-old member asked:
Dr. Richard Bensinger
51 years experience in Ophthalmology
Diet, blood: Stool will vary from light to dark depending upon the diet. Diets rich is red meat for instance will darken the stool color. If there is GI bleeding ... Read More
A member asked:
Dr. Marc Lewbart
18 years experience in Emergency Medicine
Dietary sources: often time dark green stools are the result of diet. foods that have blue in them such as blueberries or other blue food coloring can cause dark gree ... Read More
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A 46-year-old member asked:
Dr. Heidi Fowler
24 years experience in Psychiatry
Melena?: Black, malodorous, sticky stool can be due to GI bleeding.
A 33-year-old female asked:
Dr. Robert Uyeda
44 years experience in General Surgery
Things that make: black stools include iron, blood, bismuth, charcoal. There are many more things that can make for dark color.

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