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When temperatures plummet and frigid conditions ensue, frostbite becomes a serious threat.
Frostbite is when a specific part of the body becomes frozen.
"The circulation becomes impaired and the water in your tissue freezes leading to tissue destruction," said Peter Shearer, M.D., Medical Director of Emergency Medicine at the Mt. Sinai School of Medicine.
In below-freezing temperatures, ice crystals can form in veins, blocking the flow of blood. This happens most often in fingers, the nose, ears, cheeks and/or chin, according to the Centers for Disease Control and Prevention (CDC).
Frostbite can permanently damage the body and, in extreme cases, lead to amputation.
People are most susceptible to frostbite if they suffer from pre-existing conditions that cause poor blood circulation.
Those who do not dress appropriately for cold weather are also at risk. In addition, anyone under the influence of alcohol or drugs that may not be aware of their level of exposure are at a greater risk, Shearer said.
At the first sign of redness to the skin or pain, seek indoor shelter. Frostbite could be occurring.
Signs of frostbite:
It usually takes someone else to point out frostbite, as the affected person will not feel it.
If frostbite is occurring, take these steps:
It is important to make sure the affected person is not suffering from hypothermia, which is a more serious condition and requires immediate medical attention.
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Frostbite can be prevented by taking proper precautions and dressing appropriately for cold conditions.
How to avoid frostbite:
For more safety and preparedness tips, visit AccuWeather.com/Ready.
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