Female androgenetic alopecia (faga) is a common cause of non-scarring alopecia in women. the onset may be at any age following puberty and the frequency increases with age. clinically, it shows a diffuse hair thinning over the central scalp, while the frontal hairline is usually retained. In most cases, one may not need to go in for extensive hormone testing unless there are signs that there is excess androgen present. people who have aga have normal pregnancies and menses. women are asked to undergo an endocrine evaluation only after they have been identified androgenic alopecia in females after asking them questions about their history of fertility, about their menses, severe unresponsive cystic acne, virilization, presence of hirsutism and galactorrhea. if even one of these is present, then laboratory measurement of serum total, free testosterone, prolactin, and dehydroepiandrosterone sulfate are indicated. other causes can be ruled out by the measurement of serum thyrotropin, and ...