Isolated alopecia as the only sign of male hormone excess is uncommon in PCOS, since the latter is usually associated with menstrual abnormalities and increased hair growth.

• 将脱发症作为男性激素过剩的唯一症状分离出来，这在PCOS中是不常用的，因为后者常与月经不调和毛发生长性增长联系在一起。