天气预报 > 健康 > 每次洗头都掉四五十根头发正常吗
每次洗头都掉四五十根头发正常吗
更新时间: 2021-06-11 00:34:22  

1、正常。

2、人的头皮上平均有约10万个毛囊,每一根头发都有2-4年的生长期,在此期间,头发一个月可长约1厘米,之后进入静止期,数星期后自然脱落,毛囊里会再长出一根新的头发。根据常态,一个人一天掉50-100根头发是正常的。

关键词: 每次 洗头 头发 正常

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