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Thrombin

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Thrombin

Thrombin is a substance (enzyme) in the bloodstream that is needed for blood to clot. When a person is cut or wounded, thrombin and a protein called fibrinogen make a stringy material that traps blood cells and then gradually decomposes as the area heals.

Current as of: May 1, 2026

Author: WebMD Ignite Staff

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