What helps instantly against a side stitch?

Ease off the pace or walk for a bit, press the painful spot with your hand while breathing out deeply, and stretch the affected side (arm up, lean to the side). Usually it's over within a few minutes.

Why do I get a side stitch while running?

The exact cause isn't scientifically settled; the diaphragm, irritation of the abdominal lining and posture are among the theories discussed. A common trigger, especially for beginners, is starting too fast without warming up.

How do I prevent a side stitch?

Start easy and slow, warm up beforehand (especially the core), train your core regularly, breathe calmly and deeply, and run upright. And: no large meal shortly before. The fitter you are, the less often it occurs.

Does running slower in a group help?

Indirectly yes: beginners often start too fast, and an easy group pace keeps the start honest. But talking itself is not a remedy – under hard exertion, talking is actually discouraged. The group regulates your pace, not the stitch.

When should I see a doctor about a side stitch?

If the pain is very strong, lasts unusually long (for example more than 30 minutes after running) or comes with fever, nausea, vomiting or swelling in the abdomen.

Side Stitch While Running: What Helps Instantly and How to Prevent It

That stabbing pain under the ribs hits almost every runner. What helps immediately, why it happens at all – and how to prevent it, without falling for miracle cures.

Daniel Gruber · 14 July 2026 · 3 min read

Almost every runner knows that stabbing pain under the ribs – around 70 percent get a side stitch at least once over the course of a year (Morton & Callister 2015). The good news: it's harmless and usually gone within a few minutes. Here's what helps immediately and how to prevent it – honestly, without promising a miracle cure.

What helps instantly

If it hits you mid-run, one thing helps most reliably: ease off the pace or walk for a bit (Runner's World). You can also press the painful spot with your hand while breathing out deeply (AOK). Stretch the affected side by raising your arm overhead and leaning gently to the side, or bend forward briefly (Runner's World). And switch your breathing: deep into the belly rather than shallow into the chest, with a long, deliberate exhale. Some runners deliberately breathe out when the opposite foot lands – it doesn't work for everyone, but it's worth a try (Morton & Callister 2015). Usually the whole thing is over in a few minutes (AOK).

Why it happens at all – the honest answer

Here's the uncomfortable part: the exact cause of a side stitch isn't scientifically settled (Wikipedia). The research literature even calls its management "largely anecdotal" – several theories are discussed, from the diaphragm to irritation of the abdominal lining to posture, without any one being proven (Morton & Callister 2015). What's certain: a hunched posture can make it worse (AOK), and the fitter you are, the less often it occurs (DAK). Anyone selling you a single miracle fix is overselling.

How to prevent it

Even without a magic formula, a few things clearly lower the odds: start easy and slow and warm up beforehand, especially the core (DAK). Don't eat a large, hard-to-digest meal shortly before a run – on a full stomach, muscles and digestion compete for blood flow (AOK); a small, light snack like a banana is fine. Train your core regularly and try to run upright (Runner's World). And breathe calmly, evenly and deeply.

The most common beginner mistake: starting too fast

One trigger keeps coming up with beginners: setting off too fast without warming up. Those who match their pace to their own fitness and don't overdo it get side stitches less often (AOK). This is exactly where a group helps: an easy group pace keeps the start honest, because you don't sprint off too fast in the first place. Important – and honest – to note: talking itself is not a remedy; under hard exertion, talking is actually discouraged. So the group regulates your pace, not the stitch. You'll find a running group near you in the overview.

When to see a doctor

A normal side stitch is harmless. See a doctor if the pain is very strong, lasts unusually long – say more than 30 minutes after running – or comes with fever, nausea, vomiting or swelling in the abdomen (Runner's World, AOK).

Sources

Frequently asked questions

What helps instantly against a side stitch?: Ease off the pace or walk for a bit, press the painful spot with your hand while breathing out deeply, and stretch the affected side (arm up, lean to the side). Usually it's over within a few minutes.
How should I breathe with a side stitch?: Breathe deep into your belly rather than shallow into your chest, with a long, deliberate exhale. Some runners deliberately breathe out when the opposite foot lands. It can help – it's not guaranteed.
Why do I get a side stitch while running?: The exact cause isn't scientifically settled; the diaphragm, irritation of the abdominal lining and posture are among the theories discussed. A common trigger, especially for beginners, is starting too fast without warming up.
How do I prevent a side stitch?: Start easy and slow, warm up beforehand (especially the core), train your core regularly, breathe calmly and deeply, and run upright. And: no large meal shortly before. The fitter you are, the less often it occurs.
What should I eat before running, or better not?: No large, hard-to-digest or fatty meal about 2 to 3 hours before a run – on a full stomach, muscles and digestion compete for blood flow. A small, easily digestible snack like a banana is fine.
Does running slower in a group help?: Indirectly yes: beginners often start too fast, and an easy group pace keeps the start honest. But talking itself is not a remedy – under hard exertion, talking is actually discouraged. The group regulates your pace, not the stitch.
When should I see a doctor about a side stitch?: If the pain is very strong, lasts unusually long (for example more than 30 minutes after running) or comes with fever, nausea, vomiting or swelling in the abdomen.