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Frostbite is a skin injury that occurs when someone is exposed to extremely low temperatures, causing the freezing of the skin or other tissues, [1] commonly affecting the fingers, toes, nose, ears, cheeks and chin areas. [6] Most often, frostbite occurs in the hands and feet.
Frostbite is dangerous and can often happen quickly, depending on both the temperature and wind chill factor. Here’s how to know if it’s frostbite and how to treat it.
Frostbite Areas that are usually affected include cheeks, ears, nose and fingers and toes. Frostbite is often preceded by frostnip. [12] The symptoms of frostbite progress with prolonged exposure to cold. Historically, frostbite has been classified by degrees according to skin and sensation changes, similar to burn classifications.
Non-freezing cold injuries (NFCI) is a class of tissue damage caused by sustained exposure to low temperature without actual freezing. [1] There are several forms of NFCI, and the common names may refer to the circumstances in which they commonly occur or were first described, such as trench foot, which was named after its association with trench warfare.
Severe frostbite, when both the skin and underlying tissue are frozen and blood flow stops, sometimes requires amputation. Patients were divided into three treatment groups in the trial.
Unlike frostbite, trench foot does not require freezing temperatures. It can occur in temperatures up to 16 °C (61 °F) and within as little as 13 hours. Exposure to these environmental conditions causes deterioration and destruction of the capillaries and leads to damage of the surrounding flesh. [7]
This causes severe injury to the tissues and if left untreated it can cause irreversible damage. Frostbite is most likely to happen in parts of the body that are far away from the heart and that ...
Paresthesia may be transient or chronic, and may have many possible underlying causes. [1] Paresthesias are usually painless and can occur anywhere on the body, but most commonly occur in the arms and legs. [1] The most familiar kind of paresthesia is the sensation known as "pins and needles" after having a limb "fall asleep".