Why do I get bad diarrhea after flying?

It's possible that traveler's diarrhea may stem from the stress of traveling or a change in diet. But usually infectious agents — such as bacteria, viruses or parasites — are to blame. You typically develop traveler's diarrhea after ingesting food or water contaminated with organisms from feces.



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Learn some ways to treat travelers' diarrhea
  1. Drink lots of fluids. If you get diarrhea, drink lots of fluids to stay hydrated. ...
  2. Take over-the-counter drugs. Several drugs, such as loperamide, can be bought over-the-counter to treat the symptoms of diarrhea. ...
  3. Only take antibiotics if needed.


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Traveler's diarrhea appears to be most common in warmer climates, in areas of poor sanitation and lack of refrigeration. In addition, the lack of safe water and taking short cuts to preparing foods are also major risk factors. In areas where food handling education is provided, rates of traveler's diarrhea are low.

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When you're stressed, neurotransmitters (chemical messengers) travel along this pathway to your gut, where they regulate the movement of water and electrolytes4. The diarrhea symptoms that you experience during stressful situations may be part of your body's fight-or-flight reaction5.

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Use over-the-counter products. Digestion relief medication that contains the active ingredients loperamide (Imodium) or bismuth subsalicylate (Pepto-Bismol, Kaopectate) helps reduce the frequency of loose, watery stools and ease cramping. Take as directed.

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Travellers' diarrhoea tends to happen in the first week of travel. Symptoms last on average 3 to 5 days and usually get better without you needing specific treatment.

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The dry air and low air pressure in long flights is dehydrating. “Dehydration due to low humidity levels in the cabin can slow down digestion and worsen constipation and preexisting IBS symptoms,” Surapaneni explains. Consider bringing a refillable water bottle with you on the plane.

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Jet belly: (noun) the bloated state in which your stomach inflates post-flight. Also, a very unpleasant feeling. May also make you look like you're 3 months pregnant. So how does one prevent this jet belly? Well, it all depends on what you eat on the plane.

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Most healthy guts keep a consistent schedule for daily bowel movements. But traveling to new time zones messes with your internal clock, which might throw your body out of sync with your usual poop schedule.

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The increase in symptoms, Bedford says, is not typically caused by the flight itself but by the anxiety of flying. Flight anxiety and underlying stress from delays or unexpected changes to travel plans may cause many people's IBS to flare up, he says.

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Even though the air in your cabin is pressurized, the air pressure is still much lower than what you're used to at ground level. That lower pressure causes the gases in your gut to expand, resulting in bloating and gassiness, Dr. Movassaghi says.

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