Elderly people with swollen feet due to age may be due to a variety of reasons, mainly caused by renal failure, cardiac insufficiency, malnutrition and physiological factors, need to take oral furosemide, digoxin to increase the protein diet and other dispositions and treatments. 1. Renal failure: caused by patients with nephritis or renal failure, need to take furosemide and other diuretics, or hydrochlorothiazide and other Western medicines to relieve swollen feet. 2. Cardiac insufficiency: because of the swelling caused by cardiac insufficiency, the patient needs to increase the heart function, you can take digoxin and other drugs for treatment, it is recommended that the patient in the hospital according to the guidance of the doctor to take medication. 3. Malnutrition: due to edema caused by malnutrition, patients can take nutritional products, can increase the high protein diet, injection of albumin for nutritional supplementation, can effectively alleviate the elderly due to malnutrition caused by edema. 4. Physiological factors: due to physiological factors such as old age, muscle strength is insufficient, etc., it is recommended that the elderly can sleep with the lower limbs elevated, or soak their feet to improve the phenomenon of edema, physiological edema can be treated without medication. Causes of swollen legs and feet of the elderly more causes, but also include varicose veins, arterial embolism, diabetic complications and trauma and other diseases, most of them to rest, and recommend timely access to hospitals for medical examination, to clarify the cause of the disease, receive regular treatment.