A female’s first menstrual period, known as menarche, occurs during puberty. Menstruation indicates that the body is mature enough for reproduction. About 98% of girls begin their periods by age 15.

Getting your first period can come with a lot of conflicting feelings, from confusion and fear to excitement or relief. Knowing what to expect — as much as is possible — is one thing that can make ...

Her first period talk with her daughter – unexpectedly in a supermarket aisle – was awkward and far less reassuring than she had imagined. But experts say open, ongoing conversations about puberty and ...