Hirsutes. I: Diagnosis.

Hirsutes, the coarse, androgen-dependent growth of hair in women, is a common problem faced by doctors. Whether a woman presents to a clinician or not depends on cultural and racial factors. The clinician must differentiate normal biological variation from cases of hirsutes. In the vast majority of cases, androgen excess is only found locally at the level of the hair follicle; that is, the hirsutism is idiopathic. Important causes of androgen excess, such as an ovarian tumour, need to be excluded. Part one describes the causes of hirsutism and how to differentiate them using history, examination and investigation.