Fibrin: The Key to Blood Clotting and Wound Healing

The component of blood that clots and seals cuts in your skin is called fibrin. Fibrin is a fibrous, insoluble protein that forms when soluble fibrinogen is converted by the action of thrombin. Fibrin forms a meshwork of strands that traps platelets and red blood cells, creating a blood clot that plugs the damaged blood vessel and stops bleeding.