What is the typical age range for the onset of polycystic ovary syndrome (PCOS)?

Polycystic ovary syndrome (PCOS) most commonly presents during the teenage years or early adulthood, often around the late teens to early 20s. However, it is essential to recognize that while the signs and symptoms of PCOS may become more noticeable during these years, the hormonal imbalances associated with PCOS can begin developing before this time.

Individuals may experience irregular menstrual cycles, weight gain, and perhaps signs of androgen excess, such as acne or hirsutism, as they transition into adolescence. Peak diagnosis typically occurs in young adult women, leading to the belief that the condition does not present itself or become fully evident until the late 20s to early 30s, when many women are more likely to seek medical advice about their reproductive or metabolic health.

That said, the condition itself does not start suddenly in the late 20s to early 30s; rather, it is during the teenage years that the foundational hormonal imbalances often start, leading to the recognition of symptoms later. Therefore, while the provided answer aligns with common perceptions regarding diagnosis timing, it is pertinent to acknowledge the complexity of PCOS's onset and symptom development that often begins earlier in life.