Costochondritis, also known as chest wall pain syndrome, is the inflammation of the cartilage of the rib cage. Chest pain near the sternum (breastbone) is the primary symptom. It is sometimes severe ...

Whether chest and/or rib pain worsens with exercise can also help differentiate between types of chest pain. An intercostal muscle strain, like injury to the ribs, sternum, or clavicles, will result ...

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