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冻伤主要发生在手、脚、面颊、鼻子或耳朵等部位,开始时是局部红肿、疼痛、奇痒难忍,重者可现水泡,甚至破溃、感染,变成冻疮。深刻冻伤还能导致皮肤或肢体的坏死,以至不得不施行截肢手术。 发生冻伤的原因:一是外界低温潮湿。二是身体抗寒能力差。三是皮肤局部的血液循环状态不佳。因此,预防冻伤首先要注意冬季防寒,即便是在南方气温不甚低的地区,由于冬季室内缺少取暖设施,室外又阴冷潮湿,
Frostbite occurs mainly in the hands, feet, cheeks, nose or ear and other parts, the beginning is a local swelling, pain, itchy unbearable, severe cases can blisters, and even rupture, infection, become frostbite. Deep frostbite can also lead to necrosis of the skin or limbs, and even have to undergo amputation. Causes of frostbite: First, the outside world at low temperature and humidity. Second, poor body resistance to cold. Third, the local blood circulation of the skin is not good. Therefore, the first prevention of frostbite should pay attention to the winter cold, even in the southern region is not very low temperature, due to the lack of winter indoor heating facilities, outdoor and cold and humid,