Frostbite is seldom seen in areas with temperate climates. It occurs at sub-zero temperatures or at temperatures just below freezing but with a wind (wind chill). At some temperatures frostbite can occur within minutes. Note the blistering and swelling caused by tissue freezing. Sever frostbite may result in loss of fingers and toes or other exposed body parts.
Jacob L. Heller, MD, MHA, Emergency Medicine, Virginia Mason Medical Center, Seattle, Washington. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.