When Susanna Kaysen was admitted to Mclean hospital in 1967 for the treatment of Bipolar Disorder (BPD), she had no idea what to expect. For the next two years, Kaysen would undergo therapy, receive medication, and attempt to find a way to cope with her disorder. She would suffer from psychotic episodes in which she did not believe she was a real person and felt the need to harm herself to prove that she actually existed. Outbursts like this are common in patients suffering from BPD. Kaysen wasn’t admitted to Mclean Hospital for treatment until the age of eighteen, however, it is imperative that those with BPD receive treatment as soon as possible, considering that self-mutilation, violence towards others, and suicide attempts are common (as in the case of Susanna). Borderline Personality Disorder is extremely difficult to diagnose and is often mistaken for Bipolar Disorder (Lewis, 2009). Both involve mood swings and paranoia, but the change in emotions brought about by BPD are negative and triggered by something, whereas those brought about by Bipolar Disorder are both negative and positive and seem to come out of nowhere. Once Diagnosed, BPD is treated through extensive therapy and medication. Anti-anxiety medications and anti-depressants are common during treatment. One-on-one therapy and group therapy are also used. With help, those suffering from BPD can learn to control their emotions enough to lead a normal life.