There are several factors that cause lower limb edema: first, embolic disease; second, systemic hypoproteinemia; third, the lower extremities are in a sagging state, causing lower limb edema. In response to these factors, there are the following methods to quickly remove lower extremity edema: first, elevate the lower extremity to increase the venous return of the lower extremity and reduce the occurrence of edema. Second, if there is embolic disease, timely removal of thrombus can quickly eliminate lower limb edema. Third, if there is systemic hypoproteinemia, giving the patient albumin can have a rapid elimination effect on lower limb edema. In addition, if the lower limb edema is caused by heart failure, the use of cardiotonic and diuretic drugs can also quickly eliminate the lower limb edema.