There are four types of bipolar disorder. They are bipolar I, which has manic highs and extreme lows; bipolar II, which has some highs described as hypomanic and are not as severe as in bipolar I, and extreme lows; cyclothymic bipolar, which is a rare, more manageable level that experiences the same types of symptoms but neither to extreme highs or lows; and bipolar “other,” which can be the same symptoms but brought on by substance use disorders or other health concerns.