Wearing compression stockings after surgery for varicose veins of the lower extremities, swollen feet may be caused by surgical trauma, and venous return of the lower extremities appears to be blocked after vein closure leading to swollen feet. It can be improved in several ways, changing the size of the compression stockings, taking rest after the surgery and medication. Check whether there is too tight compression stockings or improper use of bandages, resulting in uneven compression triggered by edema, at this time to change the appropriate size of compression stockings can relieve the symptoms. After the operation, we should pay attention to rest, do not stand for a long time, elevate the legs when resting, and put pillows on the ankles when sleeping at night to promote venous return. If the condition is serious or does not get better for a long time, you can take some medications such as meadowsweet infusion tablets and horse chestnut seed extract tablets under the guidance of the doctor to promote the swelling. If the symptoms do not improve, it is recommended to consult a doctor immediately to check whether there is a lower extremity venous thrombosis.