Cold hands and feet generally refers to the extremities cold to the wrists and ankles. Cold hands and feet in pathological cases are generally caused by yang qi deficiency, which refers to cold extremities to the wrist and ankle. Yang qi has the role of warming the body, can promote the qi and blood run to every part of the body. If you don’t pay attention to warmth and are invaded by cold, or if you are recovering from a serious illness, resulting in a lack of yang qi, the hands and feet are not moistened, and the symptoms of cold hands and feet are likely to occur. Cold hands and feet caused by yang qi deficiency may be accompanied by symptoms such as dizziness and lightheadedness, lack of color and insomnia. It is necessary to warm and replenish yang qi, and medicines with the ability to warm yang and replenish qi can be chosen to regulate it. In addition, cold hands and feet can also occur when Yang Qi is stagnant. If you have cold hands and feet, you need to consult a doctor in time. If you need to use traditional Chinese medicine or proprietary Chinese medicine, you should be guided by a doctor’s diagnosis.