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Intercostal retractions occur when the muscles between the ribs pull inward. The movement is most often a sign that the person has a breathing problem. Intercostal retractions are a medical emergency.
Intercostal neuralgia is a rare condition that causes pain along the intercostal nerves. Intercostal nerves are located between your ribs. Ribs are long, slender bones that curve around your chest to create your rib cage.