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Doctor insights on: Black Tarry Bowel Movements

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What are causes of black bowel movements?

What are causes of black bowel movements?

GI bleeding: Black stools can be caused by GI bleeding, pepto bismol, (bismuth subsalicylate) iron, kaopectate and licorice. Your doctor should be able to examine you and tell what the cause is. ...Read more

Intestine (Definition)

The gastrointestinal tract starts at the mouth, travel down the tunnel (esophagus), which connects to the stomach, which then empties into the duodenum, jejunum, and ileum---the three parts of the small intestine (@25 feet). This empties into the colon or large intestine (about 5 feet), which then becomes the sigmoid colon, rectum and out the anus. So, every morsel eaten ...Read more


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What's wrong if my bowel movement is black?

What's wrong if my bowel movement is black?

Black Stool: Black stool can represent life threatening GI bleeding. There are some pills and foods that mimic this, but in general black stool should never be ignored. ...Read more

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Black strings in bowel movement? What can this be?

Black strings in bowel movement? What  can this be?

Bleeding: It could be bleeding, or check food or supplements, they may contain iron or coloring. ...Read more

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My partner has black black bowel movement but not every day?

Evaluation Needed: Your partner should get evaluated as there are many reasons for black bm's. ...Read more

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I have black specks in bowel movement.. What could that be??

I have black specks in bowel movement.. What could that be??

Would check GI Dr: I would get checked by a GI doctor. Black stools can be indicative of bleeding within your GI tract. Specs are an atypical way to describe this. ...Read more

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What does it mean to have a black string in bowel movements?

What does it mean to have a black string in bowel movements?

Black stool: Black pigment in bowel movements can be due to iron preparations(in some vitamins), blood leaking from the upper gastrointestinal tract, peptobismol,rarely intake of some substance like licorice. If it persists your Physician can test a stool sample in the office to check for upper gi blood loss. ...Read more

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I have been noticing thin black string like things after a normal bowel movement in the toilet. They are about 1/2 in long and thin.

I have been noticing thin black string like things after a normal bowel movement in the toilet. They are about 1/2 in long and thin.

Food fibers: Undigested fibers in the food are the most likely explanation. It is not a disorder and should not be of any concern. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, low fat milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco or alcohol in any form. Practice safe sex. ...Read more

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If I have a normal brown bowel movement in the morning and then its black in the afternoon and then brown again at night....should I be worried?

Black stools: The black stools may be due to something you are eating or medication you are taking. However, you should make sure you are not passing blood in your stool so see your doctor ...Read more

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I took some maalox a few nights in a row and it made my bowel movements black. Is this normal?

I took some maalox a few nights in a row and it made my bowel movements black. Is this normal?

Get evaluated NOW: Maalox does not cause black bms. Upper GI bleeding does. See a doctor asap. You may have a bleeding ulcer. ...Read more

Defecation (Definition)

Passing food that is fully digested and ready for excretion out the ...Read more


Bowel (Definition)

The bowel is the intestinal tract in the body. The small intestine ...Read more