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Doctor insights on: Stomach Flu Black Stool

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Could a stomach flu cause you to have black stool?

Could a stomach flu cause you to have black stool?

No: The most common causes of black stool are peptobismol (or similar medications), iron supplements, and gastrointestinal bleeding. If you haven't been taking peptobismol or iron and your stool is black (often tarry), you should see a doctor right away. ...Read more

Dr. David Cohen
850 doctors shared insights

Stomach Flu (Definition)

Viral gastroenteritis is a viral infection of the GI tract. It can be picked up from contact with surfaces and foods that are carrying the virus. Symptoms include upset stomach, nausea, vomiting, diarrhea, and abdominal cramps. Sometimes ...Read more


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Is it normal to have pale and soft stools after stomach flu?

Is it normal to have pale and soft stools after stomach flu?

Yes: It will take several days to recover completely-so your stools may remain softer and lighter than normal for several days or even a week or more, and they may be more frequent than normal. ...Read more

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Why would it be that my child is still having liquid stool after 48 hours of stomach flu?

Why would it be that my child is still having liquid stool after 48 hours of stomach flu?

Diarrhea : Viral gastroenteritis may last up to a week, make you your child is drinking pedialyte or other electrolyte containing drinks. Slowly and gradually the stool consistency will become normal. Brat diet can be helpful. Stop all juices. If no improvement after a week better see his doctor. ...Read more

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I've had a bad case of the stomach flu for past few days and now my stool is yellow to pale orange. Should I be concerned?

I've had a bad case of the stomach flu for past few days and now my stool is yellow to pale orange. Should I be concerned?

Virus: If this is a viral intestinal tract infection causing diarrhea or loose stools, the color change is to be expected due to more rapid transit of stools through the intestinal tract and would be a temporary situation. Disorders of liver, pancreas or gall bladder can also cause these color changes. If bm's don't revert to normal after several days, consult your physician or gastroenterologist . ...Read more

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Azthromycin 250 mg or zpack. 99 degree fever so low grade 3 days now. Is light tan stool and a side effect. I have a stomach flu. ?

Azthromycin 250 mg or zpack.  99 degree fever so low grade 3 days now. Is light tan stool and a side effect. I have a stomach flu.  ?

Azithromycin: Cannot diagnose you definitively over the telephone, but it does not sound as if you have anything that requires treatment with an antibiotic. You do not have a fever (99F is quite normal depending on the time of day) and if you actually have influenza or a flu-like illness this is viral and antibiotics will do nothing but create the risk of complications. ...Read more

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Stomach flu 2 days ago vomiting and dieherra only took gravol I stopped getting symptoms but now have dark stools could it be from gravol or flu?

Stomach flu 2 days ago vomiting and dieherra only took gravol I stopped getting symptoms but now have dark stools could it be from gravol or flu?

Several possibilitie: dark stool is usually not a symptom of a GI virus. If the stool is black or dark red in color and has a foul odor, it could be a sign of G.I. bleeding. If this is the case, seek help immediately. Although Gravol does not cause dark stools, several G.I. medications can, including Pepto-Bismol or bismuth- containing medications. If it persists, you should see your doctor. Good luck. ...Read more

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After having the stomach flu is it normal to have a light and dark green lumpy stool?

After having the stomach flu is it normal to have a light and dark green lumpy stool?

Not abnormal: After having a viral syndrome affecting your digestive tract, it may take a while before your bowels return to their previous pattern. Try to be patient, and gradually increase your diet when you are feeling better. Call your doctor if you have black stools or blood in your stools. Good luck. ...Read more

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Diagnosed with stomach flu on Monday haven't thrown up or had stool since Thursday can I eat normally now? Fries, pickles, chips, etc...

Diagnosed with stomach flu on Monday haven't thrown up or had stool since Thursday can I eat normally now? Fries, pickles, chips, etc...

I don't recommend it: If you are recovering from "stomach flu" and are starting to feel hungry again, no vomiting or diarrhea, it's fine to start adding solids to your diet, however I would take it easy af first. Try something bland, low in fat, and easy to digest (chicken noodle soup, crackers, toast etc) before trying anything oily, fried, or spicy! Your digestive system is recovering, you don't want to shock it! :) ...Read more

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I recently had the stomach flu and had blood in stool. Went to ER said it will go away. I still see spots of blood in stool. Its been 7 days. Normal?

I recently had the stomach flu and had blood in stool. Went to ER said it will go away. I still see spots of blood in stool. Its been 7 days. Normal?

Not normal: It is never normal to have blood in your stools. That said, it doesn't mean it has to be due to something serious as hemorrhoids are both common & a common cause of blood in stool. Blood in the stool should be evaluated. If bright red or maroon then a lower GI tract scope (colonoscopy, sigmoidoscopy, proctoscopy) is first step. If black bloody stool then upper scope indicated. See a GI doctor. ...Read more

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What to do if I have severe gas, bloating, and yellow stools after having a stomach flu a couple of days ago is this normal?

What to do if I have severe gas, bloating, and yellow stools after having a stomach flu a couple of days ago is this normal?

Altered gut flora: When you have an infection, like the flu, it can change the mix of bacteria that normally live in your colon.
That can give you gas, bloating and change the color of your stools. A few days of yogurt and normal diet should straighten things out. ...Read more

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To calm severe stomach flu-5 doses of kaopectate (kaolin and pectin) and three capletes of anti diarrhea med cause black stool?

To calm severe stomach flu-5 doses of kaopectate (kaolin and pectin) and three capletes of anti diarrhea med cause black stool?

Yes: The active ingredient in kaopectate--bismuth subsalicylate--turns stool a dark color. It can turn green or black and can persist a few days after stopping the medicine. If the black color lasts beyond three days after the medicine or is very dark or tarry (blood can cuase this change), see a doctor. ...Read more

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I have had diyahhera nausea and feces smelling burps for the past 24 hours. Could anyone tell me if this is just the stomach flu?

I have had  diyahhera  nausea  and feces smelling burps for the past 24 hours. Could  anyone  tell me if this is just the stomach flu?

Maybe not.: If your breath smells like feces, this could mean that you have something more serious than a stomach virus, like a partial obstruction. If you are taking Imodium (loperamide) stop it! This can cause your intestines to stop working temporarily if you do have a virus and cause symptoms like an obstruction. See a doc today and get checked. If you have fever, or abdominal pain, an ER is the best bet. ...Read more

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Hi. I am day two out from getting stomach flu. May I ask why my poop is tar black? Is this a problem...I have had stomach pain with this virus???

Hi.  I am day two out from getting stomach flu.  May I ask why my poop is tar black?    Is this a problem...I have had stomach pain with this virus???

GET THIS: CHECKED OUT ASAP....(ER visit ) This may be an upper GI bleed (Unless you have been taking a lot of PEPTO BISMOL????)

Hope this helps
Dr Z ...Read more

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Is neuropathy associated with guilain barre syndrome treatable and if so, how do I treat it and relieve the painful symptoms? My neurosurgeon just informed me that I have g.B.S. And had it since may 2011 following a stomach flu i had 2 weeks before my sym

Is neuropathy associated with guilain barre syndrome treatable and if so, how do I treat it and relieve the painful symptoms? My neurosurgeon just informed me that I have g.B.S. And had it since may 2011 following a stomach flu i had 2 weeks before my sym

Your : Your case presents a few dilemmas. Gbs is a group of autoimmune diseases targeted at the peripheral nerves and causing acute progressive weakness, usually an ascending paralysis.

The history usually entails the following:
•upper respiratory or diarrheal disease within previous 1–3 weeks in 50–70%: c. Jejuni (~40%), cytomegalovirus (13%), epstein-barr virus (10%), mycoplasma pneumoniae (5%), or hiv
•dysesthesias (painful tingling), paresthesias (tingling) of the feet and hands are usually the earliest symptoms.
•pain is common- especially back pain which can radiate to the legs and not usually associated with myalgias (muscle pain).
•gait disorder common in all age groups- this is the most common presentation in children
•neck muscle weakness, dysphagia, and dysarthria are predictors of respiratory failure.

The physical exam frequently reveals the following:
•acute, symmetric, and usually ascending weakness of limbs within days of dysesthesias
•areflexia (no reflexes) or hyporeflexia( reduced reflexes) and muscle weakness, decreased position and vibratory sensation
•respiratory muscle paralysis 30% if untreated
•cranial nerve involvement <50%; usually facial weakness, 10–20% ophthalmoparesis (loss of eye movement)
•dysautonomia (abnormal autonomic nervous system responses) (50%): labile blood pressure, arrhythmias, ileus (paralysis of bowel function), urinary retention;
•miller-fisher variant: ophthalmoplegia, ataxia, areflexia

important lab tests
•csf: elevated protein and normal white blood cells (wbcs; albuminocytologic dissociation) are characteristic with a normal opening pressure.
•emg: this shows a pattern of demyelination with prolonged latencies and a reduced motor compound action potential.

The medications usually used are one or more of the following:
•immune globulin (ivig)
•plasmapheresis or plasma exchange

most patients reach the plateau phase within 3 weeks of admission, and muscle strength is expected to improve. The prognosis is:
•complete recovery: 50%
•some residual disability: 45%
•severe permanent disability: 5%

hence, the dilemma as you report no improvement and in fact worsening. Furthermore, a lesion within the spinal cord (myelopathy) can present with similar symptoms as the ones you provide. A few pertinent questions to help discern the cause would include whether you have had a lumbar puncture and EMG and what did these results show?
I hope this answers your questions. Good luck and well wishes. ...Read more

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What can I do to treat stomach flu ?

Run its course: As miserable as the stomach flu makes one feel, there is unfortunately no treatment for it. Hydration with clear liquids by mouth is paramount. If you are having fewer than 3 urinations per day, you might be dehydrated. Reasons to seek medical attention during a stomach flu episode are lack of urine output, inability to take clear liquids by mouth because of excessive vomiting, lightheadedness. ...Read more

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What can you do to help a stomach flu?

What can you do to help a stomach flu?

Gastroenteritis.: Start with clear liquid like water, soda that is clear, or sports hydration drinks. Sip often to prevent dehydration. Work up to solids with bland foods like bananas, rice, applesauce, toast, gelatin, or chicken. Avoid alcohol, nicotine, caffeine, dairy ; high fat foods. Rest. ...Read more

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Can the stomach flu go away on its own?

Yes: Viral Gastroenteritis usually resolves without specific treatments. ...Read more

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Can we take packet soups during stomach flu.

Yes: When having the stomach flu, you should take in plenty of fluid to replace losses. Even when sick, we can still absorb fluids from our stomach and intestine, so keep pushing the fluids. If you can tolerate the soup, go ahead and drink it. ...Read more

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How do I know if I got tha stomach flu?

Gastroenteritis: Gastroenteritis symptoms may include: diarrhea, nausea, vomiting, abdominal cramps/pain, headaches, muscular aches ; pains as well as fever (low grade). Bloody stools are not usually associated with gastroenteritis. ...Read more

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How can I recover from the stomach flu?

How can I recover from the stomach flu?

Stomach flu: Start with clear liquid like water, soda that is clear, or sports hydration drinks. Sip often to prevent dehydration. Work up to solids with bland foods like bananas, rice, applesauce, toast, gelatin, or chicken. Avoid alcohol, nicotine, caffeine, dairy &high fat foods. Rest. ...Read more

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What can you do to treat the stomach flu?

Hydration: A viral infection of the stomach and intestines needs to run its course. The most important thing to do is to keep oneself hydrated by drinking frequent sips of clear liquids. Chicken broth, electrolyte containing sport drinks, flat ginger ale all help with hydration. Watch your urine output -- three times per day is the minimum. ...Read more

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How to get the stomach flu out of your system?

Your Immune System: Most stomach illness are caused by viruses that your body's immune system will fight off. The "out of your" system philosophy may come from advice by medical professionals not to treat diarrhea aggressivley. This recommendation is not made because the diarrhea "gets it out of your system" but rather because of side effects of some of those anti-diarrhea medicines. ...Read more

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I am recovering from a stomach flu. What to eat?

Stomach Flu: Drink water to hydrate yourself. You can also have clear soups / broths, unsweetened juices or oral rehydration solutions. You want to be gentle with your diet so that your GI track can recover. Stay away from dairy, leafy vegetables & most fruits initially. Caffeine & alcohol should be avoided as well as any dark carbonated beverages. ...Read more

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How can the norvovirus and/or stomach flu spread?

Person to Person: Most stomach virus are spread via fecal-oral route. Frequent hand washing is best prevention. ...Read more

Dr. Janice Alexander
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


Dr. Stephen Scholand
1,259 doctors shared insights

Gastroenteritis (Definition)

A condition in which a person has vomiting and diarrhea due to an infection with "stomach flu" viruses. It is contagious, and usually resolves without treatment except for over-the-counter Pedialyte or other ...Read more