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Pain and Lumps at the Bottom of the Sternum: Xiphoid Process Causes, Symptoms, and 2026 Clinical Guidelines

"Disambiguation: This clinical guide focuses on the medical anatomy, pathologies, and diagnostic pathways associated with the bottom of the human breastbone—specifically the xiphoid process and the epigastric region—and does not address surgical sternotomy recovery or avian skeletal anatomy. The anatomical region at the bottom of the sternum is a frequent source of clinical concern for patients. It is common to suddenly notice a hard lump, feel a sharp ache when bending over, or experience persistent tenderness in this area. The lower tip of the breastbone, anatomically known as the xiphoid process, sits in close proximity to major thoracic an..."

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