clot retraction

Clot retraction is the final stage of blood coagulation, the process that forms a blood clot to stop bleeding. After a blood vessel is injured, a cascade of events involving numerous coagulation factors leads to the formation of a mesh of fibrin threads. This mesh traps blood cells and platelets. Clot retraction occurs when this fibrin meshwork contracts, squeezing out fluid and making the clot firm and insoluble. This process is crucial for creating a resilient clot that can withstand blood flow and effectively seal a wound. Platelets play a vital role in this contraction, pulling the fibrin strands together to solidify the clot.12