Bipolar I and II are difficult disorders to diagnose .
Are often undetected and misdiagnosed , therefore leaving the illness inadequately treated ( Rivas - Vasquez et al. , 2002 ) .
Bipolar I and II are difficult disorders to diagnose and are often undetected and misdiagnosed , therefore leaving the illness inadequately treated ( Rivas - Vasquez et al. , 2002 ) .