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 ready for your child’s first period? We rounded up the period essentials they need to feel confident and prepared.

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 ...