Girls in the U.S. are getting their first period earlier than in decades past. Researchers say there are multiple factors causing early puberty, including obesity and environmental pollutants. Girls ...

Having your period twice a month might seem unusual, but for some women, it’s a regular occurrence. While an occasional ...

You might have two periods in one month if your menstrual cycle is short, like 24 days. Irregular periods in early pregnancy can be caused by implantation or complications. See a healthcare provider ...