<unk>  is the "shrinking" of a blood<unk>  over a number of days. In doing so, the edges of the blood vessel wall at the point of injury are slowly brought together again to repair the damage that occurred.<unk>  is dependent on the release of multiple coagulation factors from platelets trapped in the fibrin mesh of the<unk> . Thus, failure to retract can be a sign of thrombocytopenia or a rare condition called thrombasthenia. Blood<unk>  prevention can be of use before this condition develops.
Clot retraction
Venous cutdown
Exeresis
Collateralization
Vascular recruitment
Organ gifting
Ligamentotaxis
Overpressure