healthline.com
A 2019 study found that dissociative disorders frequently co-occurred in about 35% of participants living with bipolar disorder. The most common dissociative disorder noted in this study was depersonalization disorder.
A small 2021 study of 100 bipolar patients examined the frequency of dissociative symptoms and found that about 45% experienced dissociative symptoms.
A larger 2022 review found that dissociative symptoms occurred in about 10-20% of bipolar cases.