Thrombosis is derived from the Greek term meaning blood coagulation.
Under certain circumstances, a thrombus (blood clot) may develop which can partly or completely block a vessel.
Particularly in those situations where there is a lack of exercise, e.g. during bed rest in hospital, clots can develop in the veins. medi Bayreuth has developed medical anti-embolism stockings which support the blood flow through the veins to reduce the risk of thrombosis.