There are several types of bipolar disorder; all involve episodes of depression and mania to a degree.
Bipolar disorder is a lifelong illness. Episodes of mania and depression eventually can occur again if you don't get treatment. Many people sometimes continue to have symptoms, even after getting treatment for their bipolar disorder. Here are the types of bipolar disorder:
- Bipolar I disorder involves periods of severe mood episodes from mania to depression.
- Bipolar II disorder is a milder form of mood elevation, involving milder episodes of hypomania that alternate with periods of severe depression.
- Cyclothymic disorder describes brief periods of hypomanic symptoms alternating with brief periods of depressive symptoms that are not as extensive or as long-lasting as seen in full hypomanic episodes or full depressive episodes.
- "Mixed features" refers to the occurrence of simultaneous symptoms of opposite mood polarities during manic, hypomanic or depressive episodes. It's marked by high energy, sleeplessness, and racing thoughts. At the same time, the person may feel hopeless, despairing, irritable, and suicidal.