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为什么会冻手啊有什么危害吗

更新时间: 2020-09-19 00:00:00     

冻手的两大原因:

天气寒冷,经络堵塞。血液供应不足。冻手的危害:

开始色紫红或青。伴有浮肿,触之有凉冷感。此时遇暖,颜色可转为红肿,并出现瘙痒、疼痛。若受冻较重,小动脉收缩时间过久,组织损伤加重,则在红斑的基础上发生水疱或大疱,内容清晰,疱破后形成糜烂渗出液体或结痂。由于受冻较重而坏死,形成溃疡。

关键词: 为什么 什么 危害

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