Severe frostbite left untreated can result in blackened, numb skin, nerve damage and lost body parts.
What is frostbite, what are the signs and how should we treat it?
HypothermiaWinter Weather
Frostbite - Wikipedia
Frostbite: Symptoms, Treatment, and When to See a Doctor
Frostbite Stages: Pictures, Symptoms, and Treatment of Each
Frostbite
What are the symptoms of frostbite and hypothermia?
Frostbite in extreme cold: Symptoms, treatment, what you need to
Frostbite Symptoms and Treatment