If an elderly person develops foot edema, the first thing to do is to identify the cause of the foot swelling. If it is due to gout, the patient can be advised to take benzbromarone or febuxostat or colchicine if necessary. However, it is important to choose the medication in the context of the actual situation and not to use it at your own discretion. Some patients with foot edema caused by heart failure are advised to take oral hydrochlorothiazide and spironolactone. If the effect is average after taking these two drugs, oral furosemide tablets and spironolactone can also be used to improve the edema of the lower limbs by increasing the dose of the drugs used. If the patient’s foot edema is caused by hypoalbuminemia, it is recommended to order albumin if necessary, and it is possible that the foot swelling will be improved more reasonably after the hypoalbuminemia is corrected.