What Causes Sternum Pain?
Sternum pain, when associated with a clear history of trauma, is typically attributed to sternal injury or soft tissue injury in the sternal region.

In the absence of a definite traumatic history, unexplained sternum pain or tenderness raises suspicion for hematologic disorders—such as anemia, aplastic anemia, or leukemia. Pain localized behind the sternum warrants evaluation for esophageal, mediastinal, or cardiac conditions—including gastroesophageal reflux disease (GERD), esophageal cancer, mediastinal tumors, angina pectoris, or myocardial infarction.

Another group of patients experiences pain on both sides of the sternum, commonly due to costosternal joint inflammation or costochondritis. Therefore, individuals presenting with sternum pain are advised to seek medical evaluation and appropriate diagnostic testing to establish a definitive diagnosis.