Why do runners get side stitches?
Show answer & explanation
Answer: Diaphragm muscle cramps
Lungs expand too much — Wrong. Lung expansion doesn't cause stitches. Current theory: diaphragm muscle spasms from inadequate blood flow during intense exercise.
Diaphragm muscle cramps ✓ — Correct! Diaphragm theory! Side stitch (ETAP—exercise-related transient abdominal pain): sharp pain below ribs. Likely cause: diaphragm muscle cramps from: (1) Inadequate blood flow (diverted to legs). (2) Repetitive jolting stresses ligaments supporting organs, pulling on diaphragm. (3) Eating before running makes it worse. Prevention: proper breathing (deep belly breaths), gradual intensity increase, avoid food 2-3 hours before. Treatment: slow down, deep breathing, press on area. Common in running/swimming!
Rib bones rub together — Wrong. Bones don't cause pain. Stitch from diaphragm cramping likely due to blood flow issues and organ ligament stress during running.