deep frostbite

deep frostbite

Frostbite that extends to subcutaneous tissue and muscle, which is characterised by a reduction and eventual loss of sensation in the affected regions, accompanied by oedema and blood blisters. The overlying skin is yellow and waxy, and turns purple on rewarming.
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If the area freezes further, deep frostbite occurs.
Blisters will appear with deep frostbite, and skin may become cold, waxy, pale and hard.
This increases the risk of cold weather-related injuries, such as superficial or deep frostbite to the arms, hands, legs and feet.