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How many days is the menstrual cycle normal?

Male  19 years old 2018-06-07
I find that my menstrual time is very irregular every time I come. How many days is the menstrual cycle normal?

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  • BY Penelope Judson 2018-06-07
    Normally, it is 25-36 days. If the cycle is always 40 days, but there is no physiological and reproductive function, it is still a normal menstrual cycle. Periodic changes in menstruation are a reflection of periodic changes in the ovaries.
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