Cold feet in summer may be caused by kidney yang deficiency, poor circulation of qi and blood, and qi and blood deficiency, which need to be treated by replenishing kidney yang, activating blood circulation, and replenishing qi and blood. 1. Kidney yang deficiency: that is, insufficient kidney yang, can cause lumbar and knee pain, cold pain, impotence and cold feet, etc., need to take Jin Gui Kidney qi pills and other treatments, to help replenish the kidney to help yang to ease the situation of cold feet. 2. Meridians, qi and blood is not smooth: such as the body meridians, qi and blood does not run smoothly, the feet can not get enough blood nourishment, naturally, there will be cold or even numbness, you need to take angelica four against the soup, shuji vivify blood tablets and other treatments. 3. qi and blood deficiency: that is, caused by qi and blood deficiency, because the feet are at the end of the body, so it is more difficult to get the corresponding nourishment, thus appearing cold symptoms, can be taken to the spleen pill, qi and blood double tonic granules, etc. to improve. The body needs to consult a doctor in time, the drugs need to be used under the guidance of a physician, do not take on their own, so as not to delay the condition.