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.

The menstrual period is a natural part of life for many females. However, many women don’t actually know what to look for. How do you differentiate between a normal symptom and a warning ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." The first few times you get your period, it’s totally normal to feel caught off-guard. (But, ofc, not ...

It's not an official medical diagnosis, but rather a form of premenstrual syndrome (PMS). More than 90 percent of people who menstruate say they get symptoms like bloating, moodiness, and headaches a ...

Unbearable period pain may indicate an underlying medical condition. Proper treatment can often help relieve the pain. There are many causes of severe period pain, which doctors call dysmenorrhea.