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Girls who get their period early may face nearly double the risk of self-harm, a new meta-analysis finds. Researchers found that early menarche — typically defined as onset at age 11 or younger — was significantly linked to self-harm and nonsuicidal self-injury (NSSI). The findings call for greater mental health awareness and screening among adolescents in clinical, school, and community settings.
A new systematic review and meta-analysis published in the Industrial Psychiatry Journal finds that girls who begin menstruating early face significantly higher odds of self-harm and nonsuicidal self-injury (NSSI) compared to peers who reach menarche at an average or later age. Researchers pooled data from 14 studies across countries including the US, UK, South Korea, China, Sweden, Italy, and Canada — spanning school surveys, national datasets, and clinical cohorts.
The pooled analysis showed that early menarche nearly doubled the odds of self-harm or NSSI. Individual studies also flagged elevated rates of suicide plans and attempts among early-maturing girls, though the overall meta-analytic finding for suicidal ideation did not reach statistical significance.
By the Numbers:
Why it matters: Menstrual timing is an easily observable marker that clinicians, school counselors, and community health workers can use to flag adolescents who may need proactive mental health support — before a crisis occurs.
