Polycystic ovary syndrome can start at what age?

Teens and early 20s. Polycystic ovary syndrome is the most common hormone disorder in women. Its most common features are irregular/infrequent menstrual periods and excess male-like hormone (androgen) production, which causes abnormal hair growth (primarily on the face, neck, chest, and lower abdomen). Typically, it first becomes apparent during the teens and early 20's.
Once menstruating. Because pcos involves irregular menstrual cycles, this can be diagnosed in young girls who have already started having periods. Occasionally, pcos presents in girls who should be menstruating, but haven't started yet because they already have this.
Onset of adrenarche. That is a good question that there is no clear answer to. Typically, pcos is defined as a medical disorder affecting females with established menses given that a key component of its diagnostic criteria is irregular menses, however, this notion has been challenged by a recent study that looked at girls as young as 9yrs who had features of pcos yet did not start their menses (of which av age is 12).

Related Questions

Is there a difference between polycystic ovaries and polycystic ovarian syndrome?

Not really. The ovaries are polycystic and the syndrome refers to the medical issues related to polycystic ovaries such as menstrual cycle changes, hair growth patterns, weight, infertility, insulin resistance and increased risk of uterine lining overgrowth/cancers. Read more...