What should I do for unresolved diarrhoea after a stomach flu?

Doctor's Answers (2)

Dr Paul Ang

"Family Physician with special interest in Mental Health"

Thank you for your question. Diarrhea for prolonged periods of time (more than 1 week) is not common and not normal. You should get checked by a doctor soon.

Diarrhoea can sometimes persist for a while after a bout of stomach flu or food poisoning. The most important thing to do is to prevent dehydration, and replace your electrolytes as necessary. 

Usually stomach flu is self-limiting, but as your symptoms have gone on for more than 5 days, do watch out for other symptoms such as fever - if so, your doctor may want to perform a stool culture. 

If your diarrhoea (defined as >3 loose stools per 24 hrs) persists for longer than 4 weeks, then this is termed "chronic diarrhoea", and your doctor may need to do further investigations.

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