Menstruation

Irregular Periods

In the first couple of years, the amount of blood lost each period can vary.  It is also common fo periods to happen irregularly, but over time the menstrual cycle should settle into a pattern.  It is important to see a doctor if periods were once regular but then stop, if they are exceptionally painful, or if the amount of bleeding increases.  If a teen has had sex and misses a period, it may be a sign that she is pregnant.