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Understanding the Knot Under Sternum: Causes, Risk Factors, and 2026 Treatment Protocols

"The sensation of a "knot under the sternum" is a common clinical complaint in 2026, often described as a localized pressure, a hard lump, or a persistent tightening in the epigastric region. This sensation is frequently localized just below the xiphoid process—the cartilaginous extension at the base of the breastbone—and can stem from a variety of systems, including the gastrointestinal, musculoskeletal, or cardiovascular frameworks. While often benign, a knot-like sensation in this specific anatomical junction requires a systematic diagnostic approach to rule out acute conditions like epigastric hernias or atypical cardiac events. In the cur..."

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