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Doctor insights on: Gray Stool Causes

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What causes gray stool?

What causes gray stool?

Biliary problems: Stool can be gray or clay-colored if it contains little or no bile. The pale color may signify a condition (biliary obstruction) where the flow of bile to the intestine is obstructed, such as, obstruction of the bile duct from a tumor or gallstone in the duct or nearby pancreas. ...Read more

Dr. Qamar Khan
9 doctors shared insights

Gray Stool (Definition)

Gray stools is a symptom in which there is not enough yellow, brown, or green color in the stool, meaning that there is not enough bile (from the liver and gall bladder) in the stool. Gray stools can be due to a blockage in the flow of ...Read more


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Would iron cause dark gray stool?

Would iron  cause dark gray stool?

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

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Why am I having gray stool all of a sudden?

Why am I having gray stool all of a sudden?

Biliary obstruction : Can cause grey colored stool. So see your doctor. ...Read more

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My 3y/o daughter have been passing watery yellow stool or a firm but soft beige color like stool. But today she had a loose gray stool.whats wrong?ty

My 3y/o daughter have been passing watery yellow stool or a firm but soft beige color like stool. But today she had a loose gray stool.whats wrong?ty

Many causes: There are many causes and the only way to come to a diagnosis would be to have her examined and also have microscopic examination of her stools. In addition to bacteria and viruses we also need to look for Giardia and amoebas. This can also happen due to allergy and milk intolerance. So make an appointment and have her seen. ...Read more

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What does it mean when you have a gray stool? I take 325mg daily of ferrous sulfate (iron) so the stool is usually black. It has been gray for about a week.

What does it mean when you have a gray stool? I take 325mg daily of ferrous sulfate (iron) so the stool is usually black.  It has been gray for about a week.

Good : Good news! the only stool colors we get really concerned about are red (blood from colon), black (blood from small intestine or stomach), or white (liver is not working well). And in your case since you take iron, black stool would be expected and not worrisome. Colors such as brown, yellow, orange, green, gray, even blue (blue kool-aid or blueberries) or purple (beets) can all be normal and usually associated with diet. If you have a persistent change in your stool habits, you should contact your physician since this could be a sign of an underlying disorder, but a short period of strange stools that are not red, black or white is usually of no concern. ...Read more

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2 year old on miralax (polyethylene glycol) with ash gray stool?

2 year old on miralax (polyethylene glycol) with ash gray stool?

Pancreas? See Dr.: Sounds like an issue with pancreas. Need to be seen by pediatrician for evaluation and possible referral to gastroenterology. ...Read more

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What does it mean when you have gray stool? I have had 2-3 abnormal bowel movements in the past few days, mainly gray stool. What does that mean?

What does it mean when you have gray stool? I have had 2-3 abnormal bowel movements in the past few days, mainly gray stool. What does that mean?

Let me explain: Light-colored, white or clay-colored, this may indicate a bile duct obstruction. Certain medications, such as large doses of Bismuth Subsalicylate (kaopectate, pepto-bismol) and other anti-diarrheal drugs. ...Read more

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What does dark green or gray stools means?

What does dark green or gray stools means?

Dark 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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Hi, I've been taking famotidine for about 2 weeks and am having white/ very light gray stools. Should I be concerned, or is this a side effect of pill?

Hi, I've been taking famotidine for about 2 weeks and am having white/ very light gray stools. Should I be concerned, or is this a side effect of pill?

Nothing of concern: Famotidine is a safe drug with little or no side effects. You should not get too concerned about the color of your stools. ...Read more

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My 1-year-old daughter has had 2-3 whitish/gray stools in the last 2-3 days. No jaundice, eating normally, normal energy, no apparent distress. ER?

My 1-year-old daughter has had 2-3 whitish/gray stools in the last 2-3 days. No jaundice, eating normally, normal energy, no apparent distress. ER?

Stool color : Stool color can mean a lot if it is persistent. Stool color changes are most often due to diet changes or eating "other" stuff. If your daughter is otherwise healthy I believe you can wait this one out. If you have suspicion of ingesting something inappropriate then the ER. If she has a liver infection as you seem to be thinking the stool will stay pale for longer. ...Read more

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My stools are brown and gray. What could cause that?

My stools are brown and gray. What could cause that?

Change in bowels: The amount, color, frequency of stool varies with foods, speed of emptying of the GI tract, medications ; supplements ingested, gut flora (unique for each individual), additives (like blood), subtractions (like absent bile), infection, inflammation, ; other factors. If stool pattern has changed, is unusual for you, ; the change persists, or is accompanied by other symptoms, see your doctor. ...Read more

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My 15 month boy's stool has been light gray (clay like) for about 4 days now, what can be the cause of this? And what should I do? Thnx

My 15 month boy's stool has been light gray (clay like) for about 4 days now, what can be the cause of this?  And what should I do? Thnx

Grey stools: Have his liver enzymes and bilirubin checked. Could be a sign of a problem with liver or gall bladder called acholic stool., . ...Read more

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My stool was a whitish gray for about 18 hours and now has turned to a grayish yellow. What could be the cause?

My stool was a whitish gray for about 18 hours and now has turned to a grayish yellow. What could be the cause?

Changed stool color: Color of stool varies with foods, speed of emptying of GI tract, medications & supplements ingested, gut flora (unique for each individual), additives (like blood), subtractions (like absent bile), infection, inflammation, & other factors. Best case scenario for your specific changes: mucus discharge; worst case: partial biliary obstruction.Unless you correlate color change to a food, get checked. ...Read more

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What causes grey colored stool in children?

What causes grey colored stool in children?

Food: The stool color is determined by the germs that live in the intestine and the foods and colors eaten. Gray is ok. ...Read more

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Last couple of trips to bathroom stools have been a greenish grey color. I have been drinking 1-2 c. of grn tea 5 days a wk for 3 wks. Caused by tea?

Last couple of trips to bathroom stools have been a greenish grey color. I have been drinking 1-2 c. of grn tea 5 days a wk for 3 wks. Caused by tea?

Probably not: more likely due to other dietary foods you're eating or rapid transit time through gut, that the bile salts aren't being reabsorbed. Call your doctor if you're concerned to see what her/his recommendations would be for you, especially if this is a new finding? Good luck. ...Read more

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My 3 mo old is having dark greyish green stools for a month, sometimes sticky others watery. what could be the cause of this? haven't changed anything

My 3 mo old is having dark greyish green stools for a month, sometimes sticky others watery. what could be the cause of this? haven't changed anything

Color: As long as the stools have color that is a good sign. How rapid they pass often changes the color. Soy bases formula will often color the stools grey. As long as your child shows good growth color is fine. All the best. ...Read more

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My 3 month old daughter had two bowel movements with grey stool.doctor said it was teething. Her cbc levels were great.will teething cause grey poop?

My 3 month old daughter had two bowel movements with grey stool.doctor said it was teething. Her cbc levels were great.will teething cause grey poop?

Generally not: Teething does not influence the colour of the stool. It is generally the formula/solids or how the formula/solids travel through the bowel. Grey stools are considered normal. All the best. ...Read more

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