The calf part is far from the heart, and under the role of standing for a long time, due to the role of gravity, affects the venous reflux resulting in swelling, there are the following solutions to this situation: First, avoid standing for a long time or work is really not allowed, you can get up every half an hour to move the ankle and knee joint, in addition to pinch and knead the muscles of the calf part. Second, you can wear anti varicose veins elastic stockings. Thirdly, if the swelling is especially obvious, you can promote the venous reflux by taking Mizarin orally, and bubble your feet with hot water more often before going to bed at night, and elevate your feet above your heart during sleep, all of these are ways to help the swelling subside. If the above three methods still can not solve the problem, you need to go to the hospital for ultrasound examination of the blood vessels of both lower limbs to check whether there are lesions such as venous thrombosis or varicose veins.