Atypical features and bipolar disorder

Bipolar Disorder (BD) features with various of clinical symptoms, leading to the misdiagnosis of major depressive disorder (MDD). The atypical features (ATFs) are regarded as one of valuable index to identify BD from depressed patients. The ATFs should be helpful to the differential diagnose of the two diseases. In this forum, we discussed the issue of the relation between the ATFs and BD.