A girl’s first period is
considered an important milestone and an indicator she’s “growing up.” After
sharing the news, many girls prefer to manage their periods on their own
without much discussion with family. But because their period is brand-new,
girls don’t yet know what’s “normal.” As a result, every now and then, a girl’s
periods can be abnormally irregular, heavy, or long for an extended amount of
time before she gets needed help for this.
It’s a good idea for
parents to encourage girls to keep track of their periods on a calendar and to review
it with them periodically for the first couple of years. There are several free
smart phone apps that make this easy. As a rule, girls’ cycles are longer than
adult women’s. However, anywhere between 21 and 45 days from the first day of
one period to the first day of the next is considered OK. Girls with more than
two cycles outside this range or who skip their period for three consecutive
months may be fine, or they may need further evaluation. A visit to the primary
care physician can offer reassurance or initiate further management if needed.