It is known that the climate is cold in winter, so why is it that under the same sky, some people will get frostbite even if they wear more clothes, while others will not get frostbite even though they are obviously not as warm as you? 1, the reasons for frostbite When the temperature is below 10 ℃, the small subcutaneous arteries shrink in anticipation of the cold, and frostbite occurs due to poor venous reflux. Therefore, exposed parts of the body, such as the tip of the nose, ears, earlobes and cheeks, are prone to frostbite. Frostbite is a limited, bruising, inflammatory disease of the skin that occurs at the end of the cold season and is slow to heal and recur when the climate warms. Frostbite occurs in weak areas of the body, such as the ears, nose, fingers (toes), back of the hands, and heels. Frostbite manifestations (1) The lesions appear on the limbs, often as limited bright red or dark red edematous erythema or plaques, which may be chapped, blistered, eroded, or ulcerated, leaving pigmented or atrophic scars after healing. (2) It is often accompanied by itching, which is aggravated by heat. Age-related causes of frostbite are related to age. Children and adolescents are generally prone to frostbite, young adults are second, and older people are less likely to develop frostbite. When children and teenagers are stimulated by cold, the small subcutaneous blood vessels contract relatively strongly, making them prone to blood stasis and poor local blood circulation, which can lead to frostbite. 2. Physical strength and blood circulation conditions Physical strength and blood circulation conditions can also affect the occurrence of frostbite. People with weak peripheral blood circulation and poor local skin adaptation, tolerance and resistance to cold cannot withstand the cold stimulation and are prone to frostbite. 3. People who do not move for a long time and who have little activity are also prone to frostbite. The less physical activity makes the blood circulation in the hands and feet and other limb parts poor, plus the body’s resistance to cold is weak, making it easy to grow frostbite. 4, do not pay attention to warmth Whether it is the warmth of the body or the local warmth of the hands and feet and ears should be done, otherwise it will easily lead to poor blood circulation, which will lead to long frostbite. 5, too tightly dressed Clothes are too tightly dressed, resulting in poor local blood circulation and rapid changes in cold and warmth, which can also easily induce frostbite. Do not soak in hot water immediately after freezing. Malnutrition, sweaty hands and feet, and endocrine changes may also cause frostbite. How terrible is frostbite? Frostbite, if not treated promptly and effectively, often leads to stubborn dermatitis and eczema-like skin diseases, which is called “tinea cruris” in Chinese medicine, adding to the psychological burden of frostbite patients. 2, leading to frostbite phobia affects mental health. Some frostbite patients often suspect that they have frostbite after several years of not having frostbite, which becomes a lingering psychological shadow that affects the quality of work and study to a certain extent. 3. Affects the quality of life Frostbite itches unbearably every night and affects the patient’s mood. What should I do if I get frostbite in winter? 1, pay attention to cold and warmth in winter: wrap all sensitive parts of the body, and rub Vaseline or other oils on cold-prone parts to protect the skin. 2.Frequent rubbing of hands: especially where frostbite has grown before, or alternate soaking in cold water and warm water to promote blood circulation in the hands. 3.Use cold water occasionally: Occasionally use cold water to wash your hands, face and feet to promote local blood circulation and improve your ability to resist cold. 4.Choose hot food: such as mutton, dog, venison, pepper, ginger, cinnamon, chili, chocolate, wine, etc. 5, strengthen physical exercise: physical activity can accelerate the operation of qi and blood, improve microcirculation, improve the adaptability of the body to the cold. 6, wear loose clothing: wear loose and comfortable clothes, if there is frostbite on the feet, wear insoles with strong sweating ability to keep dry and avoid local pressure.