Menarche is another name for the beginning of menstruation. In the United States, the average age a girl starts menstruating is 12. However, this does not mean that all girls start at the same age. A girl can begin menstruating anytime between the ages of 8 and 16. Menstruation will not occur until all parts of a girls reproductive system have matured and are working together.
Hilton Johani is a leading expert on period pains,Tinnitus, hyperacusis and Menieres disease and has been running his tinnitus related website since 1999.
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