Figure 1: Recommended diagnostic schemes for PCOS by varying expert groups. All recommend excluding possible other etiologies of these signs/symptoms (See Differential Diagnosis) and more than one of the signs or symptoms must be present to make a diagnosis. Red box – not required for diagnosis; black box – mandatory criteria; white box – possible diagnostic criteria but not necessarily required to be present. Hyperandrogenism may be either the presence of hirsutism or biochemical hyperandrogenemia.