Neurology
Hormonal contraception not linked to idiopathic intracranial hypertension, meta-analysis finds
A meta-analysis found no evidence that hormonal contraception increases the prevalence of idiopathic intracranial hypertension (IIH). Investigators pooled data from 13 observational studies including 5,351 women with IIH and 669,260 female controls (mean age, ~33 years). Across analyses, hormonal contraceptive use was not associated with IIH prevalence, with pooled effect estimates near unity (odds ratios, ≈1.0, with confidence intervals crossing 1). Subgroup analyses likewise showed no significant associations for oral contraceptive pills, intrauterine devices, or medroxyprogesterone acetate injections, and sensitivity analyses yielded similar null results. Evidence certainty ranged from very low to low, reflecting heterogeneity and limited study quality.
Clinical takeaway: In the absence of other contraindications, clinicians can reassure patients that current evidence doesn’t support avoiding hormonal contraception solely due to concerns about IIH risk, while continuing to individualize contraceptive counseling and monitor symptoms.
Source:
Mihalache A, et al. (2026, March 25). Neurology. Idiopathic Intracranial Hypertension Prevalence and Hormonal Contraception: A Meta-Analysis. https://pubmed.ncbi.nlm.nih.gov/41881051/
