天气预报 > 其他 > 大姨妈一般来多少天算正常
大姨妈一般来多少天算正常
更新时间: 2020-11-05 00:00:00  

女性的月经周期是21-35天,如果低于21天,就是月经时间过短;超过35天,就是月经周期过长。月经的时间是2-8天,平均是4-7天,低于2天是月经时间短,超过8天是月经时间过长。

关键词: 姨妈 一般 多少 正常

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