Frostbite is a local or systemic injury to the human body caused by the action of cold and dampness. When it is mild, it can cause ** transient injury, and it should be treated in time;In severe cases, it can cause permanent dysfunction and require professional treatment. Frostbite often occurs in peripheral parts of the body with poor blood circulation, such as fingers, backs of hands, toes, heels, pinna, etc. The risk of frostbite is greater in people with reduced circulation and in people who do not have a modest increase in warm clothing during cold weather.
When it's cold.
*Protect exposed areas.
So which parts of our body.
Need special attention?
Be wary of frostbite and pay attention to these signs
Redness or pain in any of the areas indicates that frostbite may have begun, should be removed from the cold area as soon as possible or all exposed areas should be protected.
Frostbite may be indicated by any of the following signs:
A certain piece** appears white or grayish-yellow.
* Paresthesias are abnormally hard or waxy.
* Feeling numb.
Three dos and don'ts when frostbite
If you have frostbite but no indication for hypothermia and are temporarily unable to receive prompt medical care, you can be managed as follows.
Get into a warm room as soon as possible.
Soak the affected area in warm (not hot) water.
Warm the frostbitten area with body temperature, such as the frostbitten fingers under the armpits.
Do not walk with frostbitten feet, as this may increase the injury.
Do not rub or rub the frostbitten area with snow, as this may increase the damage.
Do not use electric blankets, baking lamps, stoves, electric heaters, etc. for heating, as the frostbitten area is numb and can easily cause burns.
Learn to recognize the wind chill index and avoid frostbite
The Wind Chill Index refers to the difference in perceived temperature at different wind levels and air temperatures, and it is related to the rate of heat loss caused by wind and cold.
*: Popular Science China.