Bipolar Disorder is a very real and very challenging condition, but it's also one that can be misdiagnosed. In some instances, people who present with Borderline Personality Disorder are, instead, diagnosed as Bipolar. That diagnostic error means you're not treated for the correct condition. If you suspect that you or someone you know may be Borderline but has been diagnosed as Bipolar, use this guide as a starting point to learn more, but be sure to consult a qualified health care professional before considering any treatment changes.