Why do you get frostbite every year?

Once frostbite occurs, the healing speed is often slow in cold season. Many people wait until the weather gets warmer before they gradually recover. To make matters worse, some people get frostbite for the first time and then get old. According to Zhao Bing, this is because after the first year of frostbite, the tissue repair of the frostbite site is incomplete, and the blood vessel skin forms a "memory". If it is not well controlled, it is easy to grow in the same place in the second year.

Causes of frostbite:

Frostbite is mostly caused by cold. Long-term exposure to the environment below 10℃ will worsen the peripheral circulation, which will easily cause tissue injury and necrosis of hands, feet, ears and face. According to the characteristics of chilblain, women, children and people who lack activities are more common. These people have poor peripheral blood circulation, cold hands and feet and cold limbs.

Children and teenagers are the majority of chilblain patients. After they are stimulated by cold, the contraction reaction of subcutaneous small blood vessels is stronger than that of people of other ages, and they are prone to spasmodic contraction, leading to blood stasis and local malnutrition, easy injury and frostbite. In addition, if there is malnutrition and anemia, the chance of frostbite is higher.