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Menstruation is triggered by falling progesterone levels, and is a sign that pregnancy has not occurred. The first period, a point in time known as menarche, usually begins between the ages of 12 and 15. [1] Menstruation starting as young as 8 years would still be considered normal. [2]
Luu explains that “knowing the first day of your last menstrual period is generally about tracking your menstrual cycles and understanding what is normal for you. ” She adds that tracking ...
Menstruation (also called menstrual bleeding, menses or a period) is the first and most evident phase of the uterine cycle and first occurs at puberty. Called menarche, the first period occurs at the age of around twelve or thirteen years. [8] The average age is generally later in the developing world and earlier in the developed world. [42]
After your first period, it can take from six months to a year for your period to become regular (occurring every 28 days). Still, if you are sexually active and miss a period, see your doctor for ...
Girls have started getting their first period earlier than in the past, so now it's considered "normal" for girls to get their period between 9 and 14 years old, says Maureen Whelihan, M.D., an ob ...
A menstruation celebration, first moon party, or period party, celebrates menstruation. [1][2][3] Different cultures and communities across the globe celebrate Menarche (first period). [citation needed] This practice is followed by Apache, Ojibwe and Hupa tribal communities from different parts of North America, Ulithi tribe from South Pacific ...
t. e. Menarche (/ məˈnɑːrki / mə-NAR-kee; from Ancient Greek μήν (mēn) 'month' and ἀρχή (arkhē) 'beginning') is the first menstrual cycle, or first menstrual bleeding, in female humans. From both social and medical perspectives, it is often considered the central event of female puberty, as it signals the possibility of fertility.
The findings, published May 29 in JAMA Network Open, indicate the average age at menarche — an individual’s first period — decreased from 12.5 years for those born 1950–1969 to 11.9 years ...