That 'mid-run side stitch' pain 🏃♀️—why it happens and 7 ways to prevent it (plus quick fixes mid-workout)

Last updated: April 27, 2026

Lila used to dread her weekly 5k run. Every time she hit the 2-mile mark, a sharp pain would jab her right side—so bad she’d have to stop and walk. She tried slowing down, drinking less water, even changing her route, but nothing worked. Then she learned about side stitches: what causes them and how to beat them. Now, she finishes her runs pain-free. If you’ve ever dealt with that sudden, crampy pain mid-exercise, this is for you.

Why Do Side Stitches Happen?

Side stitches (officially called exercise-related transient abdominal pain, or ETAP) are one of the most common complaints among runners and casual athletes. They usually strike on the right side of the abdomen, just below the ribcage. Here’s a breakdown of the most common causes:

CauseExplanationQuick Prevention Tip
Shallow BreathingTaking short, quick breaths doesn’t fully engage your diaphragm, leading to tension.Practice deep belly breathing before running.
Eating Too Close to ExerciseFood in your stomach or intestines bounces, irritating the diaphragm.Wait 1–2 hours after eating a meal before running.
DehydrationLow fluid levels can cause muscle cramps and tension.Sip water throughout the day, not just right before.
Weak Core MusclesWeak abdominal muscles can pull on the diaphragm.Add planks to your weekly routine.

7 Ways to Prevent Side Stitches Before Your Run

  1. Warm up properly: Spend 5–10 minutes walking or slow jogging to loosen your core.
  2. Avoid sugary drinks or heavy meals 1–2 hours before exercise.
  3. Practice diaphragmatic breathing: Inhale deeply through your nose, filling your belly, then exhale slowly through your mouth.
  4. Strengthen your core: Do 3 sets of 10 planks or crunches 3 times a week.
  5. Stay hydrated: Sip small amounts of water throughout the day, not just right before running.
  6. Avoid sudden increases in intensity: Gradually build up your speed or distance.
  7. Wear loose, comfortable clothing: Tight gear can put pressure on your abdomen.

Quick Fixes When a Side Stitch Strikes

If you feel that sharp pain mid-run, don’t panic—try these simple fixes:

  • Slow down to a walk and take deep, rhythmic breaths.
  • Press your fist gently into the painful area while exhaling forcefully.
  • Bend forward slightly to stretch your diaphragm.
  • Try exhaling when your opposite foot hits the ground (e.g., exhale when your left foot lands if the stitch is on your right side).

Common Questions About Side Stitches

Q: Are side stitches a sign of a serious problem?

A: Most of the time, no. They’re a temporary discomfort caused by muscle tension or irritation. But if you have persistent pain, sharp pain that doesn’t go away, or other symptoms like dizziness, stop exercising and consult a healthcare provider.

Final Thoughts

“It does not matter how slowly you go as long as you do not stop.” — Confucius

Side stitches are a common hurdle, but they don’t have to stop you from enjoying your run. With a few simple changes to your routine, you can prevent them or fix them quickly when they strike. Remember, consistency is key—even if you have to slow down, keep moving forward. Lila did, and now she’s crushing her 5k goals pain-free.

Comments

RunnerGirl1012026-04-26

These side stitches have been ruining my morning jogs nonstop—so relieved to find actual actionable tips here! Can’t wait to try the prevention tricks tomorrow.

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