Hyperandrogenism is one of the primary symptoms of polycystic ovary syndrome (PCOS). In such cases, it presents with symptoms such as acne and seborrhea, is frequent in adolescent girls and is often associated with irregular menstrual cycles. In most instances, these symptoms are transient and reflect only the immaturity of the hypothalamic-pituitary-ovarian axis during the first years following menarche. Approximately three-quarters of patients with PCOS (by the diagnostic criteria of NIH/NICHD 1990) have evidence of hyperandrogenism, with free testosterone being the single most predictive marker with ~60% of patients demonstrating supranormal levels. Hyperandrogenism can also be the result of excessive production of adrenal androgens caused by various conditions of hyperactivity of the adrenal glands.
In women, signs and symptoms of hyperandrogenism frequently include acne, scalp hair loss (androgenic alopecia), excessive facial and body hair (hirsutism), high libido, and others. Collectively, these symptoms are described as virilization.
In Sports and Games, a female player is not eligible to participate in female category if the amount of Androgenic hormone exceeds the permissible limits, as this could present an unfair advantage.  
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