The two ears protrude on both sides of the head. The skin is very thin, with less subcutaneous tissue, and is closely connected to the auricle cartilage. Due to the lack of protection from subcutaneous fat, and the superficial blood vessels of the auricle, it is difficult to When stimulated by cold, blood vessels contract and are prone to ischemia, hypoxia, and frostbite of the auricle. After the auricle is frostbitten, gently massaging the auricle with your hands can promote local blood circulation. Regardless of the severity of frostbite, never go to a hot room immediately to warm yourself over a fire or use a hot water bottle or hot towel to suddenly heat the area to avoid causing vasospasm and local necrosis. Do not rub hard, otherwise it may easily cause local blood circulation disorders and cause auricular pseudocyst and auricular perichondritis.

Prevention: Wear gloves and a cold-proof hat when going out in windy and snowy days. The cold-proof hat is preferably one that can protect your ears, otherwise you should wear earmuffs; keep your feet warm and dry, and your socks will get wet. Replace it in time; stop activities when the wind is strong and find a sheltered place to rest; frequently massage and rub areas prone to frostbite to promote blood circulation. At the same time, participate in regular physical exercise to improve the body's ability to adapt to cold.

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