Bipolar II disorder is characterized by the presence of a major depressive episode lasting two weeks or more, along with at least one hypomanic episode. Hypomania is a milder form of elevated mood compared to full-blown mania, lasting a minimum of four consecutive days. Symptoms include increased energy, pressured speech, and occasionally agitation. While the intensity of mania in Bipolar II disorder is less severe than in Bipolar I disorder, depressive episodes tend to be severe and may persist for extended periods.
Individuals with Bipolar II disorder typically do not experience manic episodes severe enough to necessitate hospitalization. Hypomanic symptoms generally do not result in significant impairment in daily functioning, nor do they typically lead to the severe problems often associated with manic symptoms, such as hospitalization or substantial impairment.
