Blood formation is a process in which the body produces new blood cells. Clotting is an important part of this process, as it helps to stop bleeding and protect against infection. Clotting is the process of forming a CLOT, which is a mass of platelets and fibrin that forms at the site of a wound or injury. Clotting is triggered by the release of certain proteins from the damaged cells, which then interact with platelets to form a CLOT.