+A thrombus is a localized [blood clot](/wiki/blood_clot) that forms within a vessel, impeding normal flow. This silent obstruction can be a precursor to serious conditions, from a [heart attack](/wiki/heart_attack) to a stroke.
+## See also
+- [Embolism](/wiki/embolism)
+- [Blood](/wiki/blood)
+- [Coagulation](/wiki/coagulation)
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