The causes of edema in the elderly include cardiogenic, nephrogenic, hepatogenic, endocrine, malnutrition, connective tissue and functional edema. Cardiogenic edema occurs in patients with cardiac diseases such as cardiomyopathy and heart failure; nephrogenic edema occurs in patients with nephritis and nephropathy; hepatic edema occurs in patients with liver diseases such as cirrhosis of the liver, etc., and its edema is dominated by peritoneal effusion, but it can also occur in the edema of the hands and feet. Endocrine edema is seen in hypothyroidism, primary aldosteronism, etc.; malnutrition edema is seen in chronic wasting disease such as tuberculosis, cancer, etc.; connective tissue edema is seen in systemic lupus erythematosus, scleroderma, and dermatomyositis. Functional edema in the elderly edema is common in the elderly population a type of edema, is a normal physiological changes. It is a natural phenomenon that occurs due to aging of the body functions of the elderly, and the symptoms are generally mild and recovery is faster. When edema of the hands and feet occurs in the elderly, it is important to pay attention to it and consult a doctor in time after excluding physiological causes.