Feet out of the fire fever can be seen in the yin deficiency can not control yang, deficiency fire due to exuberance or dampness and heat invasion, stagnation in the feet, dampness and heat and other conditions. Vegetative Yin deficiency, can not restrain Yang, Yang external hyperactivity, virtual fire within the birth (the body of Yin fluid deficiency leading to the production of fire and heat) can be seen in the hands and feet fever, five heart heat (two hearts and two feet heart heat, and consciously heart and chest heat) of the symptom, can be accompanied by night sweating (sleep sweating abnormally, waking up sweating to stop), insomnia, the tongue is red, less moss, and other signs of Yin deficiency. In addition, dampness and heat evil invasion, blocking the internal organs, meridians and blood flow, dampness and heat fight, stagnation in the feet, etc., can be seen in the feet fever and other heat manifestations, can be accompanied by increased sweating feet, blistering and skin and other symptoms. Feet out of the fire fever can be based on other related symptoms such as comprehensive judgment and analysis of the cause of the disease, to take appropriate measures to deal with, can not be confined to the yin deficiency or dampness and heat, etc., can also be considered to the body of yang heat hyperactivity or shoes and socks are too thick and breathable and other factors. It is recommended to consult a doctor in time to avoid delaying the condition.