How common is cyclothymia?

How common is cyclothymia?

Cyclothymia has been reported to occur at rates ranging from 0.4-percent to 1-percent in the general population. Because many of the symptoms of cyclothymia overlap with bipolar disorder and borderline personality disorder, the lack of clear-cut cyclothymic episodes and co-appearance of other conditions such as anxiety, irritability, or depression, many researchers think cyclothymia is considerably underdiagnosed and misdiagnosed.