Menstrual irregularities are more common in adolescent girls who have type I diabetes, according to research done at John Radcliffe Hospital and published in Diabetes Medicine (June, 1994).
The study concentrated on 24 adolescents with type I diabetes, and compared them to 24 age and sex matched controls. The researchers looked at hormone levels and glucose levels in the girls, as well as looking at ovarian ultrasounds.
In the girls who experience menstrual irregularity, 77 percent of them also had ovarian cysts. This apparently high incidence of cysts is a finding that requires further investigation.
It was concluded that irregularities tend to increase with poor glycemic control and weight gain.