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Doctor insights on: Black Stool After Drinking

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Is it normal having black stools after drinking hard alcohol?

Is it normal having black stools after drinking hard alcohol?

NO: Alcohol can cause gastritis or other kinds of GI bleeding. Stools could be black because of passing old blood. Please see your family physician for evaluation and help. This will only get worse with inattention and continued alcohol use. ...Read more

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Dr. Jane van Dis
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Dr. Gerald Mandell
286 doctors shared insights

Melena (Definition)

Melena is also known as Black stool. Melina is blood in the stool that is black, tarry, sticky, and smelly. The blood in melena comes from high up in the gastrointestinal tract, and gets partially digested which is why it changes to melena. Bright red blood comes from lower ...Read more


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Black stools after drinking. Is this a common side effect?

Black stools after drinking. Is this a common side effect?

Black stools: After drinking is an ominous sign for a gastric ulcer or gastritis, aggravated by the alcohol, leading to bleeding. The blood turns black when exposed to acid in the stomach and hence makes the stools black. Stop drinking! and go see a gastroenterologist to make the diagnosis and get you on a treatment plan before you do some serious damage. ...Read more

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Dr. Jane van Dis
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12 years in practice
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Black stools after a night of drinking red wine?

Black stools after a night of drinking red wine?

Black stools: Not caused by red wine cause for black stool can be GI bleeding stomach duodenum. Now alcohol could precipitate. Also bismuth found in product pepto-bismol. ...Read more

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Dr. Jane van Dis
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After you drink black coffee, is it normal to have a black stool?

After you drink black coffee, is it normal to have a black stool?

I don't think so.: If you have black, sticky, malodorous stool that might be due to gastrointestinal bleeding (melena). If this is the case - please seek prompt medical attention. ...Read more

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Visted ER for spitting a lil blood,after a night of drinking, doc did a rectal test for blood ,results negative ,gastritis, now I'm having black stool?

Visted ER for spitting a lil blood,after a night of drinking, doc did a rectal test for blood ,results negative ,gastritis, now I'm having black stool?

Go back to ER: If the doctor only did a rectal soon after you threw up blood, then it was too soon for the blood to have made it to your colon. He did not check your stomach for blood? If you are having black stools, or are dizzy, go to the ER again. No more drinking for you, cowboy! ...Read more

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1st time ever i had black stool. I take vitamins and drink coffee a lot. Why is it black/ dark brown color?

1st time ever i had black stool. I take vitamins and  drink coffee a lot.  Why is it black/ dark brown color?

? Melana: Hello. Black, tarry malodorous stool (melena) can sometimes be related to gastrointestinal bleeding. If this fits the description - it is best to have it medically evaluated. ...Read more

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My partner has really bad stomach pain, it hurts him to walk, eat, drink hot fluid and it's there all the time, he has black stools what could it be?

My partner has really bad stomach pain, it hurts him to walk, eat, drink hot fluid and it's there all the time,  he has black stools what could it be?

Ulcer or UGI bleed?: It would appear that your partner might be bleeding internally in the upper gastrointestinal tract. The black stools are called, melena and are indicators of upper GI blood loss caused by digestive action on hemoglobin. For example, blood from the large intestine will dark purple and smells foul. Bright red would suggest bleeding close to or in the anus. He should have this evaluated. ...Read more

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Stool Is Black (Definition)

Stool is black is also known as Black stool. Stool is black is a symptom in which there is black, reddish-black, or very dark coloring to stools. Black stools can be due to old blood in the stools ...Read more


Dr. Irina Medwin
115 doctors shared insights

Black Stool (Definition)

Black stool is a symptom in which a person's stool (poop) has a black color, or sometimes a very dark red color. Black stools are usually due to old blood (fresh bleeding ...Read more


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Dr. Jane van Dis
Board Certified, Obstetrics and Gynecology
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