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Doctor insights on: Probiotics Black Stool

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Can taking a probiotic pill cause black stool?

Can taking a probiotic pill cause black stool?

I've used: Several different probiotics and I have not heard of this, but of course there are so many different products, I can't say anything about the one you use. I like florastor or align and they do not cause black stool. Black stool can be from blood in your stomach from an ulcer or from use of pepto bismol (bismuth subsalicylate) or other bismuth containing meds. If nop bismuth use you need to see your doctor for proper eval. ...Read more

Probiotic (Definition)

Probiotics, by definition, are beneficial bacteria that live in our intestinal tract to help us maintain health intestines and colon. There are several species of these bacteria that are helpful to us including lactobacillus acidophilus. The meats we eat contain antibiotics that kill our natural bacteria that reside in our gut. Today, you will replace these ...Read more


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Can taking a probiotic pill cause black stool?

No: Taking iron containing preparations or peptobismol or having blood in your stool will make it black. ...Read more

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Could it be something bad if I have black stools?

Could it be something bad if I have black stools?

Possibly: Black stools can indicate bleeding from the gastrointestinal (GI) tract. It may represent blood that has been digested, turning the stool into a characteristic black, tarry stool. This may be from a stomach or duodenal ulcer. Medications can also turn the stool black, such as iron supplements and pepto-bismol. Should see your doctor. ...Read more

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Might eating oreos cause you to have black stools?

Might eating oreos cause you to have black stools?

No: If you have black, tarry malodorous stool please seek prompt medical attention for possible GI bleeding. ...Read more

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I have had black stools for the passed 8 weeks, what could be wrong?

I have had black stools for the passed 8 weeks, what could be wrong?

Possible melena: It could be a reaction to medication. However, if it is black, sticky and foul smelling it could be due to gastrointestinal bleeding. That requires prompt medical eval. ...Read more

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Is occassional black stool common?

Is occassional black stool common?

Black=blood.: While very few dietary ingredients and supplements can cause black stool, the finding of black stool should not be considered common, and could suggest bleeding from an upper gastrointestinal source. If it's common, then it should be investigated. Could be gastritis or an ulcer, for example. ...Read more

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What should I do if I have black stool?

What should I do if I have black stool?

Black stool: Take no blood thinner, plavix, (clopidogrel) Aspirin and see your docotr asap to rule out bleeding. Did you eat beets? ...Read more

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What is the reason for having black stools?

What is the reason for having black stools?

Possibly melena: 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 md visit. ...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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Can antibiotics cause black stool?

Not likely: If you have tarry black stool, see your doctor asap, as it is an indication of bleeding in the intestine. ...Read more

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Can an antibiotic cause black stool?

I don't specifically: Know of one that causes black stool. If stool is black, tarry and malodorous that could be melena (gi bleed). That would require prompt medical evaluation. ...Read more

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Can nausea pills cause black stool?

It depends: If you are taking Pepto Bismol for nausea, then yes, pepto can cause black stool. Other typical medications for nausea such as Phenergan (promethazine) or Zofran should not ...Read more

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Can a red wine give you black stools?

Can a red wine give you black stools?

No: Iron tablets and pepto bismol (bismuth subsalicylate) are two common drug store products that can cause stools to turn black. But, the more serious concern would be stomach or intestinal bleeding for which you need to seek immediate medical attention. ...Read more

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Would amoxicillin give you black stool?

Would amoxicillin give you black stool?

Doubtful...: Amoxicillin may affect your gut flora, and in so doing affect stool appearance. However, black stool is more worrisome for GI bleeding, particularly from the upper tract (e.g. Stomach). Please avoid use of nsaid's (aleve, advil) at this time, and get checked asap. ...Read more

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Does black stool warrant a trip to the er?

No: But it does warrant a trip to your gastroenterologist.

If however you are feeling light headed or faint, or having chest palpitations, that warrants an immediate trip to your ed. ...Read more

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Is it worth a trip to the doctor for black stools?

Worthwhile: Have your doc to tell you and be done with it. ...Read more

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What's the best treatment to get rid of black stools?

What's the best treatment to get rid of black stools?

Determine cause: Black stools could be due to iron supplements, bismuth antidiarrheal agent (e.g. Pepto bismol), or bleeding from the upper gastrointestinal tract or sometimes right side of the colon. Bleeding can cause black, sticky, smelly bowel movements. If not taking iron or busmuth, or it continues after stopping, it really is necessary to get seen and be sure there is not a serious but treatable cause.. ...Read more

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Is having grayish/black stool normal for a 16 year old?

Is having grayish/black stool normal for a 16 year old?

Diet vs problem: The poo color is a reflection of either diet or what your body added to the stool as a waste product. A gray/black stool could be the pepto-bismol you ingested for belly problems or a worrisome sign of abnormal bleeding in the digestive process. Write down all you remember eating over 4-5 days. If no pepto, take the list & a list of any symptoms & review them wit your dr. ...Read more

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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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Hello docs. I was wondering can tto much alcohol cause black stool?

If it is associated: With gastrointestinal bleeding. If you have black, tarry, malodorous stool - please have this medical evaluated promptly. ...Read more

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What exactly does it mean if somebody has black stools, but no nausea?

What exactly does it mean if somebody has black stools, but no nausea?

Blood in stool: Black stools, known as melena, are from blood in the stool. It looks black, not red, due to the action of the intestine.See your doctor immediatly. This can develop into a medical emergency suddenly. ...Read more

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Can dranking too much mallox are malanta are any antiacid cause black stool?

Can dranking too much mallox are malanta are any antiacid cause black stool?

Melena--get checked!: Black 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"). Unless you ingested blood from nose bleeds, bleeding gums, then you may have a signficant stomach source of hemorrhage. Get checked now! ...Read more

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How long can I wait with black stools to see if it goes away without seeing a doctor?

How long can I wait with black stools to see if it goes away without seeing a doctor?

GI Bleeding?: Black stools can be caused by harmless things such as certain foods (e.g., blueberries, black licorice) or meds such as bismuth (pepto-bismol) or iron supplements. But it may be a sign of bleeding somewhere in your digestive tract, which can be serious (and doesn't always cause pain). If you haven't eaten these foods/meds & you're having black stools, or if you have vomiting or pain, see your dr. ...Read more

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I have black stool and been constipated for over a month. How do I get back to normal?

SCARY!!! SEE DR!: Ok, I don't want to freak you out -- but black stool is not normal (unless you're taking iron/peptobismol). Black stool = digested blood. This can be from bleeding anywhere from your lips to your mid-colon. At 41, have your stool checked for blood in your doctor's office, and if positive, see a surgeon/gi doc for upper and lower endoscopy (take telescopes & look in gut). See dr within a week! ...Read more

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Is it possible for one 30 ml of peptobismol to be enough to cause black stool for two days?

Peptobis Black stool: 33 from Balt asks is it possible for one 30 ml of peptobismol to be enough to cause black stools for 2 days. YES. But why taking it? If for abd pain then bleeding from an ulcer or cancer can also cause bloody stools. If an alcoholic bleeding varices can do it. You need to review with your team and have stool tested for blood. Failure to do this may result in you dying from a curable cancer. ...Read more

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Black stool, foul smell had a colonoscopy yesterday said everything looked good is this normal?

Black stool, foul smell had a colonoscopy yesterday said everything looked good is this normal?

Not if melena: Melena is dark stools stained with denatured blood, but all dark stool is not melena. False positive hemoccult results can occur based on diet & stool additives. However, colonoscopy can result in bleeding due to biopsies, scope abrasion/trauma, post-polypectomy oozing, etc. By all means, call your colonoscopist now & alert them to your concern--they know your risks & will be eager to assist you.. ...Read more

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Now am having black stool also. No blood seen now. Iam using medication for fissure and stool softners also?

Now am having black stool also. No blood seen now. Iam using medication for fissure and stool softners also?

Black stool: Black stool can be seen with bleeding in the upper gastrointestinal tract, taking iron, taking peptobismol or kaopectate. Bleeding from the anal or rectum would be bright red. Stool softeners don't cause black stool. A simple stool test in the doctor's office can detect occult blood. If stools are tarry and you feel weak, go to the hospital emergency room where prompt evaluation can be obtained. ...Read more

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I have ablack stool during 2 month after birth my baby I have natural delivary is black stool is bad or not? What is reason

Probably not: Most of the time black stool is not of concern.
Lots of things can make stool black - iron pills, pepto bismal, etc.
So unless it continues, don't worry.
However, bleeding from the upper intestinal track - ulcers, polyps, inflammation does turn stool black.
So, if it continues and you are not on iron post-delivery, do see a doctor. Tests can easily determine if you have a problem.
Peter wilk, md. ...Read more

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My partner gets stomac pain a lot n his bowl motions change a lot from normal to loose and often has black stools what advice can u give?

My partner gets stomac pain a lot n his bowl motions change a lot from normal to loose and often has black stools what advice can u give?

See: His doctor for a thorough examination. Make sure your partner tells everything related to the illness to his doctor; no secrets and be honest for a proper evaluation. ...Read more

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I get black stool once every 20days or a month. It doesn't smell v foul. It happens for one day n color is normal other days. Don't take iron med etc?

Possible bleeding: Black stools always rises the concerns about bleeding from the intestines, most commonly from the upper gastrointestinal tract (esophagus, stomach or duodenum), but it could also come from the rest of small bowel and colon. You should seek medical attention and make sure it is not the case.
Iron and peptobismol commonly cause black stools as well. ...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 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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I have black stool and pain in my stomach?

Black stool: Are you taking iron/ peptobismol/ bismuth? All can cause black stool, as can blood in stool. Blood in stool is very serious and an emergency, can b a bleeding ulcer. F/U immediately with ER. ...Read more

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What causes black stools?

Blood: 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 or red stools need to be investigated. ...Read more

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What does it mean if I have black stools?

What does it mean if I have black stools?

Blood or iron: Vitamines containin iron, iron tablets, and pepto bismol (bismuth subsalicylate) can all cause black stools. Bleeding in the stomach can also cause black stools. ...Read more

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Had black stools today should I be worried?

Likely not: Wouldn't worry about one episode, may be dietary related. If however they persist and you have other symptoms (abdominal pain, dizziness) need evaluation to be sure you do not have gastrointestinal bleeding. ...Read more

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What does it mean if you have black stools?

What does it mean if you have black stools?

Dark-colored stool: 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. Silver-colored stool suggests bleeding from the biliary tree. Get checked. ...Read more

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I was wondering are occasional black stools bad?

Depends on your: Diet. If you eat beets or take pepto bismol (bismuth subsalicylate) or iron supplements occassionally and it is followed by a black stool, probably not but black stool without an obvious cause should not be ignored. It is not normal and may indicate a source of upper GI bleeding. See a GI doctor for a thorough evaluation. ...Read more

Dr. Sewa Legha
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


Stool Is Black (Definition)

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