Running Stomach Pain: Causes and Remedies
Running is one of the most effective and accessible forms of exercise, but it can also cause certain discomforts, including running stomach pain. This issue, commonly known as exercise-related transient abdominal pain (ETAP) or side stitches, can interfere with your running experience. Understanding the causes of this pain and knowing how to alleviate it is essential for anyone who wants to run comfortably and effectively.

What is Running Stomach Pain?
Running stomach pain typically occurs in the form of sharp, cramping sensations in the abdominal area. This pain can range from mild to intense and may last for several minutes, disrupting your workout. It is most commonly felt on the side of the abdomen, just below the ribs, although it can also affect other areas. Side stitches are a common manifestation of this type of pain, especially in runners who are new to the sport or who have increased their intensity suddenly.
In this article, we will explore the potential causes of running stomach pain and provide remedies to help reduce its occurrence. We’ll also explain why this pain should not be ignored and how you can continue your running routine with minimal discomfort.

Why Does Running Stomach Pain Occur?
Understanding the reasons behind stomach pain while running is crucial for preventing and managing the discomfort. Here are some of the most common causes of side stitches or exercise-related abdominal pain:
- Diaphragm Ischemia (Lack of Oxygen)
The diaphragm is the primary muscle used for breathing, and when running at high intensity, it works harder to supply the body with oxygen. Diaphragm ischemia occurs when the diaphragm is deprived of oxygen due to the increased demand during exercise, leading to cramping and pain. This can result in sharp pains on the side or abdominal area, commonly known as a side stitch. - Gastric Distention
Stomach expansion after eating a meal is another cause of running stomach pain. When you run soon after eating, your stomach may expand and put pressure on your diaphragm, triggering discomfort. The digestive process can also interfere with the body’s ability to perform physical activities, leading to cramps and side stitches. - Peritoneal Irritation
The peritoneum is a thin membrane that surrounds the abdominal organs. When running, the movement of these organs can cause friction between the peritoneum and the abdominal wall, leading to pain. This is commonly referred to as peritoneal irritation, which is often responsible for the sharp pains associated with side stitches. - Dehydration and Electrolyte Imbalance
Dehydration or low electrolyte levels can exacerbate abdominal cramps while running. When the body doesn’t have enough fluids, muscles—including those involved in breathing—become more prone to cramps. Maintaining proper hydration and electrolyte balance is crucial for preventing running stomach pain.
Types of Running Stomach Pain: Symptoms and Characteristics
Understanding the characteristics of stomach pain while running can help distinguish it from other conditions that might require medical attention.
- Sharp, Stabbing Pain
This is the most common form of running stomach pain. It feels like a needle pricking the side of the abdomen, often occurring suddenly during a run. This sharp pain is a hallmark of a side stitch, which can make it difficult to continue running at the same pace. - Cramping and Pulling Sensation
In less severe cases, stomach pain during running may present as cramping or pulling, especially if the pain is not sharp but rather more diffuse across the abdomen. This sensation usually comes and goes, often fading after a brief period of rest or adjustment in posture. - Pain Location
The pain is typically localized on the right side of the abdomen, although it can also affect the left side or other areas, such as the lower abdomen. The pain is usually felt during physical exertion and can subside once the intensity of the activity decreases.

How to Prevent and Manage Running Stomach Pain
Now that we know the causes and symptoms of running stomach pain, it’s important to explore ways to prevent and manage this discomfort. Here are some remedies for running stomach pain:
- Breathing Techniques
One of the most effective ways to prevent side stitches is to focus on your breathing. Try to take deep, controlled breaths, ensuring that your diaphragm is working optimally. Diaphragmatic breathing can help avoid the diaphragm ischemia that causes pain. Inhale deeply through your nose, allowing your stomach to expand, and exhale fully to avoid shallow, rapid breathing. - Hydration and Electrolyte Balance
Proper hydration is essential for maintaining muscle function and preventing cramps. Drink water consistently throughout the day, and consider consuming drinks with electrolytes before and after your run. Avoid drinking too much right before a run to prevent discomfort, but ensure that you maintain adequate hydration throughout the day. - Avoid Eating Large Meals Before Running
If you’re prone to gastric distention, it’s important to avoid eating large meals before running. Wait at least 2-3 hours after eating before engaging in physical activity. If you need a snack, opt for something light and easy to digest, such as a banana or a small energy bar. - Improve Posture and Running Form
Poor posture and improper biomechanics can contribute to stomach pain while running. Focus on running with an upright posture, keeping your shoulders relaxed and your torso aligned. Avoid slouching, as this can increase the strain on your diaphragm and abdominal muscles, leading to discomfort. - Gradual Increase in Intensity
If you’re new to running or returning after a break, start slowly and gradually increase the intensity of your runs. Sudden bursts of speed or excessive distances can overwhelm your body, leading to cramps. Increase your distance and pace steadily to allow your body to adapt to the demands of running.
When to Seek Medical Advice
While side stitches are common and usually harmless, persistent or severe abdominal pain during running may indicate an underlying health issue. If you experience consistent, sharp pain that doesn’t subside with rest, or if the pain is accompanied by other symptoms such as nausea, dizziness, or shortness of breath, it’s important to consult a healthcare professional to rule out more serious conditions.
Conditions such as gastrointestinal disorders, hernia, or even gallbladder issues can cause similar pain during physical activity. Always listen to your body, and if the pain persists, seek medical attention for proper diagnosis and treatment.
Conclusion: Understanding and Managing Running Stomach Pain
Running stomach pain, or side stitches, is a common issue that can disrupt your workout, but with proper understanding and management, you can continue running without discomfort. By focusing on breathing techniques, hydration, and adjusting your running posture, you can minimize the occurrence of side stitches. It’s important to gradually increase your running intensity and avoid eating large meals before your runs to prevent stomach pain.
Remember, occasional side stitches are normal, but persistent pain should not be ignored. Take steps to prevent discomfort, and if necessary, consult with a healthcare provider to ensure that there are no underlying health issues. With the right strategies in place, you can run pain-free and enjoy all the benefits that running offers to your physical and mental health.