Side cramps, also known as exercise-related transient abdominal pain (ETAP), are a common problem for runners. They can be sharp, stabbing pains that occur in the side of the abdomen, and can range from mild to severe. While the exact cause of side cramps is unknown, there are a number of factors that can contribute to them, including dehydration, electrolyte imbalance, and poor abdominal muscle strength.
Side cramps can be a nuisance, but they can also be dangerous if they are severe enough to cause dehydration or electrolyte imbalance. In some cases, side cramps can even lead to heat stroke. If you experience side cramps while running, it is important to stop and rest until the pain goes away. You should also drink plenty of fluids and eat a snack to replenish your electrolytes. If your side cramps are severe or persistent, you should see a doctor.