Girls in the U.S. are getting their first menstrual period about 6 months earlier on average than they did in the 1950s and ‘60s. And more girls are beginning menstruation before the age of 9, which ...

A recent study indicates that girls of color, particularly Black girls, are beginning their menstrual cycles at younger ages than their peers. While the exact reasons for this phenomenon remain ...

Pain related to sickle cell disease (SCD) increases during menstruation, as do emergency department (ED) visits and hospitalizations, for many women and girls—according to a new, nationwide study led ...

Researchers say multiple factors are likely impacting early puberty, including obesity, stress and endocrine-disrupting hormones which are widespread in the environment. (SDI Productions/Getty Images ...