Sleep HealthJuly 2, 2026·5 min read
By the CIRRUS Editorial Team — how we write and source this
Why sleep apnea is underdiagnosed in women — the symptom presentation is different
Diagnostic criteria and physician suspicion were built around a male-typical presentation, and the data on the gap is stark.
Obstructive sleep apnea in women is estimated to be substantially underdiagnosed relative to men, and a meaningful part of the reason is presentation: women with OSA are more likely to report fatigue, insomnia, morning headaches, and mood symptoms rather than the loud snoring and witnessed apneas that clinicians are trained to associate most strongly with the condition. A presentation that reads as 'depression' or 'just tired' to a general practitioner may delay a sleep study referral by years.
Hormonal factors compound the gap: OSA prevalence in women rises notably after menopause, as declining progesterone (which has upper-airway-stabilizing effects) removes some of the protective effect women have pre-menopause — meaning a woman with no sleep apnea symptoms in her 30s can develop a real diagnosis in her 50s without any change in weight or other 'classic' risk factors.
The practical implication for anyone experiencing unexplained fatigue, morning headaches, or mood changes without an obvious cause: raising sleep apnea specifically as a possibility with a physician, rather than waiting for it to be suggested, closes some of that diagnostic gap — home sleep apnea testing is a relatively low-barrier first step compared to in-lab polysomnography.
This article is general health information, not medical advice, and doesn’t replace evaluation by your own physician. Talk to a doctor about anything specific to your own diagnosis or treatment.