Medically reviewed by Cordelia Nwankwo, MD Key Takeaways Breast development usually starts about two years before the first period. Emotional changes and mood swings can occur just before the period.

The most common reason behind painful periods in adolescents is primary dysmenorrhea. This occurs due to the release of ...

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 ...

For girls, starting their period is inevitable. But the age when a child’s period begins, called menarche, can tell them a little about their health later in life. Menarche that begins “anytime ...