Exposed ankles can easily lead to the internal invasion of cold, localized to the ankle joints, resulting in arthritis, joint swelling and pain. The ankle joint is also an important human body meridian circulation through the place, three inches above the inner ankle, there are three yinjiao point, three yinjiao point for the liver meridian, spleen meridian and kidney meridian convergence point, cold evil invasion will lead to the spleen and stomach cold, stomach pain, stomach bloating, loss of appetite. It will also lead to kidney yang deficiency, resulting in uterine cold, infertility, dysmenorrhea and irregular menstruation in women, and impotence and premature diarrhea in men, so be sure to rest and pay attention to keeping your ankle warm.