Postpartum depression screening catches mothers who are sad but misses the ones who are planning suicide, because the standard screening tool does not adequately assess suicidality

The Edinburgh Postnatal Depression Scale (EPDS) is the most widely used postpartum depression screening tool in the world. It is a 10-item self-report questionnaire translated into dozens of languages and recommended by ACOG, the AAP, and WHO. But it has a critical blind spot: its single question about self-harm (item 10: 'The thought of harming myself has occurred to me') is the only question that touches suicidality, and it does not distinguish between passive ideation ('I've thought about it'), active planning ('I know how I would do it'), and intent ('I am going to do it'). A woman who answers 'hardly ever' because she had one fleeting thought scores the same as a woman who answers 'hardly ever' because she is minimizing active planning out of fear her baby will be taken away. Maternal mental health conditions are the leading cause of maternal mortality in the United States. Suicide and overdose together account for more pregnancy-related deaths than any single obstetric cause. Yet the screening tool used at the 6-week postpartum visit — if the mother even attends that visit — was designed to detect depression, not suicide risk. A 2024 review in the Journal of Clinical Medicine confirmed that three of the four most widely used perinatal screening tools (the Whooley questions, the CES-D, and the EPDS) do not specifically or adequately address suicidality. The tools catch the women who are tearful and struggling with bonding. They miss the women who are quietly planning to end their lives. The structural problem is twofold. First, most OB practices do not have mental health professionals on staff or a reliable referral pipeline, so providers are reluctant to screen deeply for something they cannot treat — the 'Pandora's box' problem that providers themselves cite as a reason they do not screen at all. Second, the screening happens once, at the 6-week visit, but perinatal mood disorders can onset at any point in the first year postpartum. A mother who screens negative at 6 weeks may develop postpartum psychosis at 4 months with no further touchpoint with the healthcare system. The combination of an inadequate tool, a single screening timepoint, and no downstream mental health infrastructure means the most dangerous postpartum mental health crises go undetected until they become emergencies — or tragedies.