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Real members of myIBSteam have posted questions and answers that support our community guidelines, and should not be taken as medical advice. Looking for the latest medically reviewed content by doctors and experts? Visit our resource section.
A myIBSteam Member asked a question 💭
San Rafael, CA

The last 2 flare ups I've run a low-grade fever. Could this be SIBO instead?

May 22
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myIBSteam

Running a fever during an IBS flare-up is not a typical IBS symptom, so it's really worth mentioning to a doctor. IBS is generally not associated with fever, which means a low-grade fever showing up during flares could be a signal that something else needs attention.

A healthcare provider may want to run some tests, like Show Full Answer

Running a fever during an IBS flare-up is not a typical IBS symptom, so it's really worth mentioning to a doctor. IBS is generally not associated with fever, which means a low-grade fever showing up during flares could be a signal that something else needs attention.

A healthcare provider may want to run some tests, like blood work or stool tests, to get a clearer picture of what's going on. Common IBS flare symptoms typically include:

- Cramping and abdominal pain
- Bloating and gas
- Changes in bowel habits (diarrhea or constipation)
- Nausea
- Fatigue
- Back pain

Fever isn't on that list, so it's a good idea not to brush it off. Bringing it up with a gastroenterologist sooner rather than later is the best move — they can help figure out what's behind it and whether further investigation is needed.

May 22

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