![]() ![]() Without adequate food, clothing, or shelter, heat is lost successively from the interior of the body to the skin, to the layer of still, insulating air surrounding the skin, and finally to the ambient cold air. Conditions conducive to frostbiteįrostbite can occur whenever the ambient temperature falls below 0° C (32° F). ![]() If not relieved, these conditions lead to disruption of the blood corpuscles, thrombosis (clotting) within the small blood vessels, and tissue gangrene. The freezing-thawing process causes mechanical damage to cells (from ice), tissue dehydration, and local oxygen depletion.
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