What Causes Irregular Periods?
Most girls get their first periods between the ages of 10 and 15 years old. Early on, a girls may experience irregular menstrual periods for as long as three years. If you experience irregular periods for three years, it is recommended that you see a doctor.
While some menstrual irregularity is natural, there are a number of causes of irregular periods. These include excessive exercise, certain medications, very low body weight, hormonal imbalances, and not eating enough calories. Doctors can prescribe hormone pills or lifestyle changes that can help regulate periods.
It’s important to note that most women get their periods the exact number of days after the last one. A girl’s period is discussed in terms of a 28-day cycle, but that figure is just an average.