Soaking foot bags is a way of keeping in good health. It can not only relieve our day's fatigue, but also have a good effect on sleep and height. Foot bath bag can lose weight, promote metabolism, strengthen internal circulation, and then achieve the effect of losing weight. Foot-soaking bags can also transport blood to the end of the feet, which can reduce the occurrence of diseases such as hypertension, heart disease and stroke. It should be noted that soaking feet in hot water will lead to capillary rupture, pigmentation and blackening of calves. If patients with venous thrombosis are taking anticoagulants, the bleeding will be more serious. Therefore, for patients with varicose veins and thrombosis, it is easy to aggravate the condition by soaking their feet with hot water. There is also arterial occlusion of the lower limbs, and feet are often soaked in hot water, which is easy to aggravate the condition.