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Doctor insights on: Dark Green Tarry Stool

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Yesterday I had soft, VERY green stool. Today, I had a very hard, very dark green, almost black stool. Is this cause for concern?

Yesterday I had soft, VERY green stool. Today, I had a very hard, very dark green, almost black stool. Is this cause for concern?

No: You may take a fiber laxative like Metamucil and drink enough water daily so that your urine is colorless. For the long term you may try to increase your intake of fiber foods. Consult this site for fiber foods.
http://www. Mayoclinic. Org/healthy-lifestyle/nutrition-and-healthy-eating/in-depth/high-fiber-foods/art-20050948
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Dr. Amrita Dosanjh
347 Doctors shared insights

Melena (Definition)

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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Can taking ferrous sulfate supplements cause dark green/black stools?

Can taking ferrous sulfate supplements cause dark green/black stools?

Possibly: I'm aware that Iron digestion causes dark black or green stools. Chemical digestion is responsible for this. I would continue the Iron and inform your doctor in case they would like to perform tests. ...Read more

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Black stool this morning. Was NOT tarry, didn't disperse in the water. I poop an hour later, it was dark brown, not black. Had pepto on wed. & thurs.

Black stool this morning. Was NOT tarry, didn't disperse in the water. I poop an hour later, it was dark brown, not black. Had pepto on wed. & thurs.

Likely Pepto Bismol (bismuth subsalicylate): Pepto Bismol (bismuth subsalicylate) can cause a change in the color of stool and turn it black. As long as you are not otherwise noticing any significant associated symptoms like abdominal pain, change in bowel habits, this is not a worrisome concern. ...Read more

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What kind of black stool is a indicator of colon cancer? Smelly and tarry? I had dark leafy specks on my stool im 22

What kind of black stool is a indicator of colon cancer? Smelly and tarry? I had dark leafy specks on my stool im 22

Blood: Dark tarry stools is indicative of blood high in the GI tract like a bleeding ulcer. You should talk to your primary care doc about this. May need antacid medicaton. ...Read more

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What can cause "tarry" stool?

What can cause "tarry" stool?

Concerning: Assuming you are not taking any meds with bismuth, tarry stool is often an indicator of bleeding from the intestinal tract and should be thoroughly and promptly evaluated by a gastroenterologist. Do not delay! ...Read more

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What does "tarry stool" mean?

What does "tarry stool" mean?

Black like tar: Or melena, usually indicates there may be a bleeding site from your upper GI tract that the blood on exposure to stomach acid turns tarry black. This needs prompt attention to diagnosis and treatment. ...Read more

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What is meant by a black or tarry stool?

Agree w Dr. Hemming: If stool is black, tarry and has a foul odor - this could be melena which is due to GI bleeding. Seek prompt medical attention if that the case. ...Read more

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Black stool, is it really black or just dark?

Black stool, is it really black or just dark?

Melena = black: When concerned about melena from GI blood loss, the stool is tarry black. If concerned ask your doctor to check your stool for blood. ...Read more

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Dark brown, but not black stool. What could it be?

Dark brown, but not black stool. What could it be?

What you ate?: Color of stools varies widely, and reflects mostly what you've eaten as well as some medications. Generally not a reliable sign of anything, but any color can contain hidden blood, so if you're worried, your physician can do a simple hemoccult for hidden blood in the office. ...Read more

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One of hard dark not sure if "black" stool, should I be concerned?

One of hard dark not sure if "black" stool, should I be concerned?

No, but keep track: One episode of hard stool is not to be concerned about. However, you need to keep track to make sure there is no bleeding. You may wish to take a fiber laxative like metamucil to soften the stool. At your next visit to the doctor you may wish to discuss getting your stool tested for occult blood. ...Read more

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Dark brown nearly black stool with no other symptoms what is this?

Dark brown nearly black stool with no other symptoms what is this?

Could be: Something you ate, medication, or occult blood. Get it tested to make sure. Some black foods can make your stools dark, and meds such as iron and bismuth in peptobismol can make your stools black or dark. ...Read more

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Speaking of black stools, do you mean very dark brown or truly black?

Speaking of black stools, do you mean very dark brown or truly black?

Black: Black stools (melena) are potentially worrisome as this can be a sign of intestinal bleeding. A few other things can cause black stools (like iron supplements) but regardless, you should have it checked by your doctor. ...Read more

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Been having dark brown with mostly black stool this morning. Should I worry?

Yes: Black stool can be blood in there from the stomach or duodenum. A quick visit to the doctor can get the result with a quick test for blood.
It is something that should be checked by your physician. ...Read more

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I'm 31 year old female and good health and having dark black stools coming out of my stoma?

Internal bleeding?: Stoma? Do you have a colostomy? Whether from a stoma or naturally, dark black stool usually means internal bleeding, typically in the upper genital tract, such as an ulcer. Call your doctor. If you can't reach your own doc right away, visit an urgent care clinic or emergency room, even though night and the weekend are approaching. Do it immediately if light headed, weak, or dizzy. Good luck! ...Read more

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What do you advise if I had dark brown with mostly black stool this morning. Should I worry?

If it was: Black, tarry and foul-smelling it could be related to GI bleeding. That would warrant medical eval. Take care. ...Read more

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What do you suggest if I have dark brown with mostly black stool this morning. Should I worry?

What do you suggest if I have dark brown with mostly black stool this morning. Should I worry?

Yes: Black stools or melena, is always considered blood. It usually comes from the stomach or the beginning parts [higher up in our jargon] of the small intestine. Bleeding from colon usually comes out red. Black been partially digested stools need to be investigated. Products containing bismouth can make our stool black, but it must always assumed to represent bleeding within the GI tract. ...Read more

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How do you tell the difference between dark brown stools and black stools and are dark brown stools normal?

How do you tell the difference between dark brown stools and black stools and are dark brown stools normal?

Black is bad: Black stools are completely black or black green. Dark brown stools are fine. The color of the stool is very dependent on the diet a diet rich in red meat will have dark brown stools but they should not be black. Blackstilt can be seen when there is blood in the digestion track or from senna cathartics. ...Read more

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Just been diagnosed with crohns disease, I have had black stools but they are not tarry they are quite loose as well, should I be worried?

Depends: Black stools can be caused by medications like iron or even some mesalamines. If your doctor is not concerned that it's a sign of upper GI bleeding, it may be due to the medication you're taking. ...Read more

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Can your stool contain partial melena? This AM, stool was primarily light brown, but few pieces were very, very dark brown. What distinguishes melena?

Can your stool contain partial melena? This AM, stool was primarily light brown, but few pieces were very, very dark brown. What distinguishes melena?

No: Melina is blood in the stool. It is determined by a test on the stool. Since the stool all goes through the same tube it would be positive through a sample. ...Read more

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Ferrous sulfate causes tarry stool why?

The iron: Which is what ferrous sulfate is, reacts to make the stool black and can also contribute to constipation. ...Read more

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Gi contrast cause dark black stool?

Please talk to your: Dr. I don't believe that barium contains bismuth or iron which could cause stool to become black. If the bowel movements are black., sticky & malodorous - this could be due to a GI bleed & would require prompt medical evaluation. Take care. ...Read more

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Black stools and green urine. Is this serious?

Could be: Neither is normal. Black stools can be due to pepto bismol (bismuth subsalicylate) use or from blood arising from a source in your stomach. Green urine could be the result of some food coloring agents or medications/vitamins you are taking. Either way they should be investigated for underlying causes. ...Read more

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I am so confused about how bloody tarry stool looks like...compared to black stool. Aren't they the same thing?

Be cautious: If you have black stools and are not sure if these are tarry black, treat it as if it were black tarry stool and get a sample tested for blood. ...Read more

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Really dark, almost black stool. Is this normal? (I ate a lot of cherries before this). It has been normal color ever since. Should I have it checked?

Really dark, almost black stool. Is this normal? (I ate a lot of cherries before this). It has been normal color ever since. Should I have it checked?

Define melena: Melena, by definition, is passage of dark stools stained with denatured blood. As we established in prior healthtap answers, all dark stool is not melena. Your doctor, or even an over-the-counter test that you can purchase, can check to see if your dark stool contains blood. Needed is for you to provide a sample of the dark stool. False positive results can occur based on diet & stool additives. ...Read more

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On dalacin. And had tarry stool with little bright bits of blood. Should I go to hospital?

On dalacin. And had tarry stool with little bright bits of blood. Should I go to hospital?

Dalacin (Clindamycin: In rare cases it can cause stomach irritation and /or bleeding problems from platelet decreases. Yes. Check with your doctor. ...Read more

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Very dark stool (probably melena) and oversensitive bladder (frequent urge) for more than a week now.

Very dark stool (probably melena) and oversensitive bladder (frequent urge) for more than a week now.

Not an issue for: This forum. Bleeding in the gastro-intestinal tract is a serious issue and needs to be investigated by a doctor, preferable an gastro-enterologist. ...Read more

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Can I have a tarry stool the day after intense workout? . it was first training after a long pause, I don't take any supplements or vitamines

Can I have a tarry stool the day after intense workout? . it was first training after a long pause, I don't take any supplements or vitamines

If black tarry-: -stool, it is usually a sign of blood from the upper GI tract. I would have it seen by your GYN Or scoliosis-rectal specialist. You can start @ your PCP, & get referrals as needed. Remember ingesting beets can cause this look in your stools. ...Read more

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Are two different colored stools (yellowish and dark brown) normal? If bleeding is suspected, can there be partial melena and partial normal stool?

Are two different colored stools (yellowish and dark brown) normal? If bleeding is suspected, can there be partial melena and partial normal stool?

Sure...: Melena, by definition, is passage of dark stools stained with denatured blood. As we established in prior healthtap answers, all dark stool is not melena. Your doctor, or even an over-the-counter test that you can purchase, can check to see if your dark stool contains blood. Needed is for you to provide a sample of the dark stool. False positive results can occur based on diet &stool additives. ...Read more

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I had abd pain 1 week ago lasting 3 days. Pain subsided. Today I had a formed black stool. Not tarry. What could this be. Dr has not called back yet.

Peptic ulcer...: A peptic ulcer commonly causes upper abdominal pain and can bleed leading to black stool (s). Your doctor may want to start you on a acid suppressive medication like Prilosec (omeprazole) and/or order an endoscopy to try and diagnose the ulcer (if present). Good luck! ...Read more

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Ate 900ml of dark chocolate ice cream during the evening. Next day, stool was very, very dark. Almost black. Would this cause this or melena? Nervous.

Ate 900ml of dark chocolate ice cream during the evening. Next day, stool was very, very dark. Almost black. Would this cause this or melena? Nervous.

Not melena: Hi
I wouldn't worry too much about it. Melena is a recurring issue and due to small amounts of bleeding in the GI tract, not just a one time deal. It is caused by the oxidation of the iron (which is present in our blood cells) by our digestive enzymes. Sometimes there is food coloring in ice cream, which can definitely color your stool. Just keep an eye on it for now. ...Read more

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I have tarry black stools which looked like clotted blood. Can celiac disease be a cause?

I have tarry black stools which looked like clotted blood. Can celiac disease be a cause?

No: This is not a typical symptom of celiac disease. More common would be diarrhea, loose, watery stools, and failure to gain weight. Tarry stools is a symptom of intestinal bleeding. ...Read more

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Had couple glasses of red wine last night. This morning had very dark brown/not quite black stools. Should I be worried.

Had couple glasses of red wine last night. This morning had very dark brown/not quite black stools. Should I be worried.

No: A couple glasses of red wine are not responsible for this. More likely it was what you ate the day before. If the condition persists, see your dr. ...Read more

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Taking Ferrex 150 BID- have dark greenish black stool and black specs when wiping. Is this from the iron pills?

Taking Ferrex 150 BID- have dark greenish black stool and black specs when wiping. Is this from the iron pills?

Ferrex: Http://www. Webmd. Com/drugs/2/drug-17009/ferrex-150-oral/details#side-effects

Iron pills do cause stool to turn black and may have black flecks. F/u/ w/ doc ...Read more

Feces (Definition)

Feces is the product of ...Read more