Kidney yang deficiency is afraid of cold, the body is cold, and the body will be stasis, so the spots grow
The kidney governs water, and the kidney has the functions of storing essence and regulating water. After yang deficiency, The metabolic capacity of water will be weakened under the skin. and the metabolism of melanin is slowed down, so spots grow.
肾阳虚怕冷，体寒，体内会瘀，因此长斑；
肾主水，肾具有藏精和调节水液的功能。阳虚后，水液在皮肤下的代谢能力减弱，黑色素代谢减慢，因此长斑。
文章来源：皇帝内经
