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Doctor insights on: Very Dark Diarrhea

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I have very dark diarrhea it's almost black? What would be the cause of this? I've also had stomach cramps too.

I have very dark diarrhea it's almost black? What would be the cause of this? I've also had stomach cramps too.

GI Bleeding: When blood travels through the GI tract, it exits black and is called melena. I would be concerned this may be indicative of gastrointestinal bleeding. Commonly an ulcer will bleed and I see you are on Aspirin which can cause it, but it could be lower GI as well. But regardless, with pain, black stools and history of regular Aspirin - I would go immediately to the hospital emergency department. ...Read more

Dr. Oscar Novick
2,187 Doctors shared insights

Loose Stools (Definition)

Loose stools is a symptom in which a person's stool (poop) does not hold its shape after it goes into the toilet. Instead of remaining a shaped piece of poop, the poop spreads out in the toilet bowl water. Very loose stool is called diarrhea. Loose stool can be caused by infections, certain foods or drinks, ...Read more


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I have ibs. But lately very smelly gas and very smelly dark diarrhea. Mother found out she had colon cancer at 35.Why so stinky? No change in diet.

I have ibs. But lately very smelly gas and very smelly dark diarrhea. Mother found out she had colon cancer at 35.Why so stinky? No change in diet.

You need to see doc: You are 47, having malodorous, bark stool which may suggest bleeding (melena--which can be quite foul) and needs to be checked. You also have a family history of colon cancer--a big concern. So, don't delay. Contact doc for eval as soon as you can. Good luck. ...Read more

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Help please! Is dark green diarrhea bad?

Help please! Is dark green diarrhea bad?

Green, loose stool: Any conditions which cause the stool to transit too rapidly through the intestines can lead to green, moist stool. On the other hand eating green leafy vegetables can lead to green stool. Green cabbage, lettuce, peas, cabbage, spinach, broccoli, green salad, green leaves, celery & green beans as well as food that contains green food coloring can lead to green stool. See dr for change in stool >>. ...Read more

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I've been having diarrhea lately and today my diarrhea was really dark brown? What could this be?

Stool color: The color of stool has little significance unless it is jet black or inordinately pale to white. Otherwise this is related to the type of bacteria in your gut. Diarrhea is most commonly due to viral infection, but if it becomes progressively worse you may need to see a doctor to have you and the stool examined. ...Read more

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Female 25. I have had two bouts of explosive dark brown diarrhea over the past two hours. Should I be concerned?

Only if painful: I'd stay close to a toilet, (stay home), stay away from others (minimize spread), and drink plenty of fluids (alternate water and Gatorade). If this continues or is uncontrolled, or associated with anything more than mild abdominal pain/cramping, then head to an urgent care or ER (if severe) or see your doctor in the morning. Speed of follow up is proportional to pain. ...Read more

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I am having runny diarrhea and the color is dark green, also I ate a blueberry muffin today can that be the cause of it?

I am having runny diarrhea and the color is dark green, also I ate a blueberry muffin today can that be the cause of it?

Possibly: If the muffin was bad or contaminated, it could be. However, it depends on what else you ate and if anyone else who ate the same things also got sick. Usually these infections resolve within 1-2 days. If not, see your doctor for an exam and possible stool test. ...Read more

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It's 3 days that I'm having diarrhea. It gets better during the day but worse at night. The color has turned into pink now (used to be dark)?

Blod in stools: Dark or red (pink) bowel movements can be a sign of serious bowel infections and/or bleeding. You should get this checked immediately at an emergency room or urgent care ...Read more

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I've been taking colonclenz for 2 days maybe 3. I take 2 pills a day. This morning I had diarrhea which was very dark, maybe even black. Is this ok?

See MD: The GI tract moves food, , and eventual stool through the GI tract, so colon cleansing is not ordinarily needed nor should it be taken for any reason.
Gi problems that prevent normal bowel movements need to be reported to md
colon cleanse may contain laxatives that of course may cause diarrhea. Black stools may represent bleeding in the upper part of the GI tract, so report it to md. ...Read more

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My daughter has no other symtoms and hasn't got diarrhea I am carefull what I give her and its been dark green for few months now?

My daughter has no other symtoms and hasn't got diarrhea I am carefull what I give her and its been dark green for few months now?

I suspect I already: Answered, but I'll expand my answer. The color means nothing if she is otherwise healthy. It can reflect what she is eating, it can also be green from iron and vitamin supplements. When to see a doctor? If she has Un-expected weight loss, Indigestion, Diarrhea, Foul-smelling stools, Burning sensation in the
rectum, Gas/flatulence, Mucous in stool. If she is otherwise healthy, growing, its ok. ...Read more

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I have had diarrhea for the last few days and its dark black with brown foam that floats at the top of the water in the toilet. Should I be concerned?

Dark black?: Black (not bright red) stools can indicate bleeding in the upper GI tract. This needs to be checked out by your doctor. You could also have some type of food poisoning that causes blood in stool. Please see your doctor as soon as you can. Be well. ...Read more

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Dark cloudy urine with a little diarrhea. What could be causing this?

Dark cloudy urine with a little diarrhea. What could be causing this?

UTI: It is possible that you may have a urinary tract infection. Given you symptoms, you may want to seek investigation and treatment, as it is possible you may require antibiotics if your signs are as systemic as you state. You may want to consider going to see your primary care physician or urgent care as soon as you can. ...Read more

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I have been having pretty steady diarrhea for about 2 weeks and it had become very dark brown in color with bright red from hemmeroids almost every bm?

I have been having pretty steady diarrhea for about 2 weeks and it had become very dark brown in color with bright red from hemmeroids almost every bm?

Ans: Time to see your doctor for testing. Chronic diahrea needs medical intervention. Now you are very young. Any travel hx or family history. This is very important. Also you diet. What did you change 2 wks ago? ...Read more

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Is dark green diarrhea bad? I ate berry crunch cereal 3 times in the last 12 hours.

Is dark green diarrhea bad? I ate berry crunch cereal 3 times in the last 12 hours.

The cereal does not: Cause this. U should get in 2 C Ur PCP 4 eval, especially if U have any fever or chills. Could B infectious or due 2 some food or water U ingested, not the cer. May need stool culture. ...Read more

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Having diarrhea that is dark olive green w/ what looks like coffee grounds. Have an appt today. Should I be concerned?

Yes but..: A concern about upper GI bleeding is low. Coffee ground like matter in diarrhea is not the same as emesis. But let your doctor know. ...Read more

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I gave birth 1month ago, and had diarrhea almost every other day since. Why? Today it was a really dark green. Should I be worried?

That relationship: Is a bit difficult but stress and bowl habits can be related. With a newborn your sleep cycle is likely off and this may contribute. Consider more fiber in diet, bulky plant fiber or fibercon, but likely not directly related to delivery. Gd luck, get seen if not improving. ...Read more

Dr. Oscar Novick
3,346 Doctors shared insights

Diarrhea (Definition)

Diarrhea = increased frequency of stools which ...Read more