Varicose veins are not advocated for hot springs, but swimming is possible. Varicose veins can form a pressure gradient in the lower extremities when standing in the pool, thus promoting venous return to the lower extremities, so that the symptoms of varicose veins can be relieved, and may even lead to some therapeutic effect in some of the patients who already have complications. However, the higher the temperature of the hot spring, the more it will increase the blood supply to the lower limbs and increase the incoming blood, thus increasing the burden of venous return. At the same time, under the action of hot springs, the subcutaneous venous blood vessels dilate, which will lead to more impaired valve function, and in the long run will aggravate the venous insufficiency of the lower extremities, so patients with varicose veins are not advocated to take a hot spring bath.