Summer heat in the palms and feet can be caused by hot weather, high temperature, liver fire, or yin deficiency and fire. Hot weather: In summer, the temperature rises, the outside environment temperature is too high to make the body feel uncomfortable, sweating increases, the hands and feet will also be hot, sweating. Excessive liver fire: the body of people with excessive liver fire is more likely to be very hot in summer, and the heat spreads to the limbs, resulting in hot hands and feet. Steamy sweating and sticky sweat are also seen, which tends to make clothes yellowish, face red and baking hot, irritability, bitter mouth, yellow urine; thin yellow tongue coating and stringy pulse. Yin deficiency fire: kidney yin deficiency is caused by a person’s hands and feet heart fever caused by yin deficiency fire, can be seen night sweating (sleep sweating abnormally, wake up sweating to stop), or self-sweating (involuntary sweating during the day, sweating on the aggravation of the slightest movement), the five heart heat (two hearts and two feet heart heat, and consciously heart and chest heat), or both afternoon hot flashes, the cheekbones, red, thirst. There may be many other causes of summer heat in the palms and feet, it is recommended to go to the hospital for further examination to determine the cause of the disease and timely treatment.