A 37-year-old member asked:
what is the average age for period to start for males and females?
1 doctor answer

Dr. Heidi Fowler answered
25 years experience Psychiatry
Menarche. : Hello. Well - only females have periods. The average age is 12.5 years for a girl (in the us). But some girls might have their first period (menarche) as early as age 9 and some girls might not get theirs until they are 15. So it is variable.
Answered on Mar 28, 2013
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