Surface skin temperature in humans varies alongside ambient temperature, internal temperature and conditions affecting both the skin and underlying structures.[1] Consequently, a uniform temperature is not typically maintained by skin as a whole, as demonstrated by inconsistencies between different regions of the body even in spite of measurements taken under various external conditions.[2] Lower temperatures are characteristically observed in proximity to superficial veins, relative to superficial arteries, and over protruding body parts including the toes, fingers, ears and nose.[3] Meanwhile, skin surface temperature has been observed to be higher over active organs rather than those at rest, as well as over muscles rather than tendons or bones.[10]