This is due to a stagnation of blood in the veins caused by prolonged immobility, which can promote blood clot formation in veins.
其原因是由于长时间不动，造成静脉血液停滞，促使静脉中血凝块形成。
Its basic pathogenesis is the deficiency of kidney and the stagnation of blood.
本研究认为肾虚是骨转移癌的发病根本，基本病机是肾虚血瘀。
Meanwhile, he also stresses the removal of qi stagnation, damp heat and blood stasis.
强调标本结合，注重标实的清除，善于通达气滞、湿热、瘀血。
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