SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/run-side-stitch-location

Where is a side stitch usually felt during running?

Just below the ribs on one side.

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  1. Across the lower back
  2. Just below the ribs on one side ✔
  3. In the center of the chest

Why: A side stitch may be a spasm of the diaphragm, the muscle between your chest and belly. You usually feel it right under your ribs or as a jabbing pain on your side.

Huh, didn't know that: Eating right before exercise may make a side stitch more likely.

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Why did the runner bring a needle? To fix a side stitch.
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References

Answer: Just below the ribs on one side. A side stitch may be a spasm of the diaphragm, the muscle between your chest and belly. You usually feel it right under your ribs or as a jabbing pain on your side.

  1. Why Do I Get a Side Stitch When I Run? | Cleveland Clinic health.clevelandclinic.org/why-do-i-sometimes-get-a-side-stitch-when-i-run
    You’ll typically feel a persistent pain right under your ribs or a jabbing pain on your side.
    Checked 2026-10-12.

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