Irregular periods in young women can be cause for concern

[unable to retrieve full-text content]While irregular periods are common among teenage girls, an underlying hormonal disorder may be to blame if this problem persists. Polycystic Ovarian Syndrome is an endocrine disorder that is characterized by an excess of androgens or male hormones in the body. The imbalance of hormones interferes with the growth and release of eggs from the ovaries, which can prevent ovulation and menstruation.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/~3/-gDghp6VR7s/130910121438.htm

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