Side Stitch During Exercise: Causes and the Ayurvedic Approach

The side stitch — that sharp pain, most often under the right ribs, that strikes during running, swimming or horseback riding — has a precise medical name: exercise-related transient abdominal pain (ETAP). This very common symptom has never been covered on this site, even though it naturally complements our articles on digestion and bloating and exercise by dosha.

What research shows about its origin

A landmark review by Morton and Callister, published in 2015 in the journal Sports Medicine, took stock of years of work on this symptom (see the study on Google Scholar). In a survey of nearly a thousand athletes across six different sports, the authors report that 61% had experienced a side stitch within a year, with a particularly high prevalence among swimmers (75%) and runners (69%). The authors conclude that the strongest explanation is irritation of the parietal peritoneum — the thin membrane lining the abdominal wall — caused by friction against a full stomach and by repeated stretching of the ligaments connecting the diaphragm to the digestive organs during exercise.

The link with the meal before exercise

This mechanism explains why a side stitch occurs more often after a heavy meal, rich in fat or concentrated sugars (very sweet fruit juices in particular), eaten too close to exercise: a still-full stomach places extra pull on these ligaments with every stride. This observation lines up directly with the Ayurvedic idea of agni, the digestive fire: a meal poorly digested by the time physical effort begins is traditionally considered a cause of discomfort and of ama buildup, poorly cleared digestive residue.

How to prevent it

Factor	Recommendation	Rationale
Meal-to-exercise gap	Wait 2 to 3 hours after a full meal	Gives agni time to digest before the mechanical demand of exercise
Nature of the previous meal	Light, low-fat, low-sugar if exercise follows soon after	Reduces pull on the diaphragmatic ligaments
Hydration	Avoid large amounts of liquid right before exercise	An overly full stomach worsens the phenomenon
Gradual warm-up	Build up intensity gradually rather than starting fast	Reduces the risk reported in field surveys

What to do when a side stitch strikes?

The solutions most commonly reported as effective by athletes themselves, according to the same research, are slow, deep breathing and leaning slightly forward or pressing a hand on the painful area while temporarily reducing exercise intensity. Slowing down rather than stopping abruptly often lets the sensation resolve within a few minutes.

Precautions

Abdominal pain during exercise that does not ease with rest, that comes with fever or vomiting, or that occurs without any clear link to a recent meal should be evaluated by a doctor to rule out another abdominal cause. Cross-cutting guidance is in our safety guide.