静脉淤血 meaning in English

passive congestion
venous congestion

If the muscle pump is not working eg due to immobilization , the blood flow in the veins may decrease known as venous stasis to the point where small thrombi may form
如果肌肉泵作用无法正常发挥比如长期不运动，血液的流动就会减慢静脉淤血，从而产生血液里的凝结。
As may be expected , since immobility and the resulting venous stasis are involved , the rate is much higher in hospital patients - particularly among those who have undergone major surgery and are unable to move around
长期的静止不活动会造成静脉淤血，因此这情况比较多会发生在住院病人身上-尤其是那些由于进行大手术而无法下床活动的病人。