Starting your menstrual period is one of these changes. When puberty begins, your brain signals your body to produce hormones. Some of these hormones prepare your body each month for a possible pregnancy. This is called the menstrual cycle. Hormones cause the lining of the uterus to become thicker with extra blood and tissue. One of your ovaries then releases an egg.
Menstruation typically begins at about age 12, but periods are possible as early as age 8. That's why it's important to discuss this topic early. Menstruation, however, can be an awkward subject to explain. So what's the best way to prepare your child?
A period is a release of blood from a girl's uterus , out through her vagina. It is a sign that she is getting close to the end of puberty. There is a lot to learn about periods.
Even though girls get their periods on a cycle, that cycle can take different amounts of time each month. For example, a girl might get her period after 24 days one month and after 42 days the next. These are called irregular periods. Irregular periods are very common, especially in a girl's first few years of getting her period.