As the old saying goes, “Men are afraid to wear boots, women are afraid to wear hats”, what do you think about this saying? Swollen feet is a common clinical symptom, the common causes of swollen feet are: (1) cardiac insufficiency. (2) kidney disease. (3) Obstruction of venous return in the lower extremities. (4) Lymphatic reflux obstruction, such as elephantiasis caused by filariasis. (5) Hypothyroidism. (6) Hypoproteinemia, etc. Therefore, the main treatment is to address the cause of the disease. (1) If the swelling of both feet is accompanied by chest tightness, shortness of breath and panic, cardiac insufficiency is more likely, so it is recommended to visit the cardiology department. You need to check ECG, cardiac ultrasound, and draw blood to check brain natriuretic peptide and other indicators. Treatment is mainly diuretic, vasodilator therapy and cardiac stimulation if necessary. Patients need to control the intake of salt and water, appropriate activities, and avoid excessive exercise. (2) If both feet are swollen, accompanied by head, face, eyelid edema, renal insufficiency may be greater, it is recommended to go to the nephrology department for consultation. It is necessary to check urine routine, kidney function, and if necessary, 24-hour urine protein amount. If it is due to nephritis, medication needs to be given. Severe cases need dialysis treatment. (3) If only the feet are swollen and there are no other uncomfortable symptoms, and the swelling is mild or even not swollen in the morning, but heavier in the evening, it is recommended to consult vascular surgery or general surgery to check the veins of the lower limbs. In serious cases, surgery is needed. (4) If only the feet are swollen and there are no other uncomfortable symptoms, and the difference in the degree of swelling in the morning and evening is not great, it is recommended to check the lymphatic system, which is usually seen in general surgery, or if it is caused by filariasis, it is necessary to refer to the infection department. (5) If the feet are swollen, accompanied by chills and fear of cold, but the body temperature is normal, the thyroid function can be checked to see if the swollen feet are caused by hypothyroidism. You need to check thyroid function, thyroid ultrasound, etc. Give thyroid hormone replacement therapy. (6) If the foot swelling is accompanied by poor eating, check the patient’s nutrition to see if the edema is caused by low protein due to malnutrition. Total blood protein, albumin, etc. need to be checked. Most of them can be recovered after giving correction of malnutrition. In short, swollen feet is not terrible, to the regular hospital to find the cause, for the cause of treatment, more can be relieved or recovery.