Frostbite can occur in 30 minutes in temperatures ... Tissue death, also known as necrosis, causes tissue to turn black and causes skin and even extremities to fall off. “You can get secondary ...

DENVER (KDVR) — Denver Health has seen at least a dozen frostbite patients since the start of the recent cold snap, and Dr. Eric Lavonas has cared for some of them. “The other night I took ...