Diarrhea is a symptom of COVID-19, even though COVID is generally considered a respiratory illness.

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Symptoms

The severity and duration of COVID-related diarrhea can vary.

Studies on COVID and diarrhea have found:

Diarrhea can become persistent in people with long COVID.

Stalls in a public restroom

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Causes

Diarrhea is a symptom of a COVID infection itself.

Antidiarrheal medications might delay clearing the virus from the gut.

Therefore, before taking these drugs, ask a healthcare provider about the risks and benefits of taking them.

COVID-19 or Food Poisoning?

Food poisoningand infections likegastroenteritis(stomach flu) can easily mimic the GI symptoms of COVID-19.

Psychological distress and certain medications used to treat COVID can also cause digestive symptoms.

2023 Oct 14;15(10):e47028.

doi:10.7759/cureus.47028

Nebraska Medicine.Nausea and diarrhea?

How to tell if it’s COVID, the stomach flu or food poisoning.

2022;56(2):e145e148.

Genentech.Actemra (tocilizumab).

doi:10.14309/ajg.0000000000000728

Kow CS, Hasan SS.The use of antimotility drugs in COVID-19 associated diarrhea.J Infect.

2021;82(2):e19.

doi:10.1016/j.jinf.2020.09.017

Miller HJ.Dehydration in the older adult.J Gerontol Nurs.

2015 Sep 01;41(9):8-13. doi:10.3928/00989134-20150814-02

MedlinePlus.Diarrhea.