Bipolar Disorder in Adolescents / Teens: Prevalence, Risk & Key Differences

Key things to know What the evidence shows
How common is it? 3.9% pooled bipolar-spectrum prevalence across youth studies*
Is it more common among adolescents / teens? Major period of onset/emergence
Are adolescents / teens at higher risk? Yes — typical onset often occurs by adolescence/young adulthood
How much higher is the risk? Youth bipolar-spectrum pooled 3.9%, not strict BD
How often can it be missed? High
Does it show up differently among adolescents / teens? Yes
How might it look different? Depression may precede recognizable hypomania/mania; impulsivity, risk-taking, sleep change and academic/social disruption
What commonly occurs alongside it? ADHD; anxiety; substance use; suicidality
What can it be confused with? ADHD; MDD; BPD traits; substance-induced mood disorder; sleep deprivation
Common screening tool MDQ with caution / structured assessment
Separate screening tool for adolescents / teens CMRS-P / adolescent mania measures
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