Bipolar Disorder in Women: Prevalence, Risk & Key Differences

Key things to know What the evidence shows
How common is it? 0.7% global 12-month, adults 20+
Is it more common among women? Overall prevalence similar/slightly higher than men; BP-II relatively more common in women
Are women at higher risk? Reproductive transitions affect illness course
How much higher is the risk? WHO: 0.7% vs 0.6% adult 12-month prevalence
How often can it be missed? Very high, particularly when care focuses on depressive episodes
Does it show up differently among women? Yes
How might it look different? More depressive burden and BP-II in many datasets; reproductive-cycle effects may modify course
What commonly occurs alongside it? Anxiety disorders; migraine; eating disorders; substance use
What can it be confused with? MDD; BPD; ADHD; PMDD; substance/medication-induced mood disorder
Common screening tool MDQ
Separate screening tool for women None
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