Are there really two types of bipolar disorder?

Bipolar Disorder.: There are three types of bipolar disorder: bipolar 1 disorder, bipolar 2 disorder, and cyclothymic disorder. Does that answer your question, or is there really something else you want to know that you're possibly hesitant to ask, or find out? Isn't it interesting that this question has been waiting for awhile to be answered?

Bipolar Disorder: is really a spectrum. Bipolar I can have devastating sxs if not treated. Bipolar II Disorder, Bipolar Disorder Not Otherwise Specified and Cyclothymic Disorder all have cyclic changes of mood and energy in common.

Yes: Bipolar I and bipolar II, In the first, manic phases are more severe, and in the second, depressive phases are more severe. There is also cyclothymia which is a low grade version of bipolar disorder in general, where mood swings are not as severe in either direction, manic or depressive.