Swelling of the feet every night is associated with exertion, because the venous blood return to the lower extremities is affected after activity, especially in elderly patients with reduced vascular elasticity and muscle atrophy, which can also lead to increased swelling of the lower extremities, especially edema of the feet. In combination with heart disease or chronic kidney disease, edema of the distal extremities is also likely to occur, and the patient may also experience significant swelling and heaviness in the lower extremities. The limb can be elevated in the lying position. To actively treat the primary disease, it should be noted that no weight bearing or overexertion should be done. For patients with varicose veins, compression stockings can be worn appropriately when moving around, which can also help to improve microcirculation in the lower limbs. Severe varicose veins are prone to skin ulcers or necrosis, and if necessary, surgery is an option.