Very low urgency
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When you touch the skin of an area of the body with your hands, you feel it has a very low temperature, colder than normal. For example, coldness in the feet or fingers.
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Fourth degree frostbite
Superficial first degree frostbite - Frostnip
Second-degree frostbite - deep
Acute arterial ischemia due to embolism
Acute arterial ischemia due to thrombosis