Background A 20-year-old woman presented with excess facial and body hair, which she had noticed for the first time after her menarche and which had gradually worsened since then. In addition, the patient's menstrual cycles had always been irregular. Her family history revealed that her mother also had a history of excess body hair. Among the patient's family members there was no other history of chronic diseases, including type 2 diabetes. She denied taking any regular medications and had been shaving and waxing regularly to remove the excess hair. On examination, the patient was a lean woman with normal vital signs. Prominent coarse hair was noted over her upper lip, chin, lower abdomen, lower back and upper legs. The remainder of the physical examination was unremarkable.