ABSTRACT
Hair disorders include hair loss (nonscarring and scarring alopecias), excessive hair growth (hypertrichosis and hirsutism), and ingrowing hair (pseudofolliculitis). In women, pro-androgen medications (e.g., testosterone), hypothyroidism, obesity-accentuating polycystic ovarian syndrome, and incidental telogen effluvium may accelerate hair loss. The vast majority of patients with AGA can be managed with a combination of medical, surgical, and camouflage techniques. The more common primary scarring alopecias will be discussed in this chapter. In Graham-Little syndrome, patchy scarring alopecia of the scalp is associated with nonscarring loss of axillary and pubic hair and lichenoid follicular eruption on the body and/or scalp. Targeted investigations can be performed based on systemic review of symptoms and signs. It is useful to classify hypertrichosis based on age of onset and extent when considering possible causes. Depilatory measures are helpful, and treatment should also be directed to cause.
