In plain words
Dysphoric milk ejection reflex, or D-MER, is a sudden wave of unpleasant feeling that some mothers notice when their milk lets down. The feeling can be dread, sadness, or a sense of unease. It usually starts within seconds of the and passes in a few minutes. Mothers describe it as sudden and hard to explain. It is not a mood disorder by itself, but it can happen alongside depression or anxiety. It is not the same as nipple pain from a structural cause. Many mothers feel relief once they know it has a name. Help is available for a mother who has thoughts of harming herself, or whose low mood lasts most of the day. can be called or texted at any hour, and a provider can help.
The deeper version
D-MER is a described phenomenon of transient dysphoria linked to the , reported mostly in mothers who are breastfeeding or pumping. Its mechanism is not established. Proposed explanations include dopaminergic and oxytocin-related changes at the time of let-down, though these remain hypotheses. Evidence is largely from patient reports, online surveys, and small clinical series, and it has not been validated as a diagnostic category in the major classification systems. Distinguishing D-MER from perinatal mood and anxiety disorders requires attention to duration, persistence, and other symptoms. Postpartum Support International describes the phenomenon in its perinatal mood information. The main open questions concern prevalence, mechanism, and whether any clinical intervention changes its course.
Where it comes up
What mothers here say about dysphoric milk ejection reflex
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Sources
- Postpartum Support International — Perinatal mood and anxiety information for families and providers, including dysphoric milk ejection reflex
- American Psychiatric Association — Diagnostic and Statistical Manual of Mental Disorders, fifth edition, text revision (DSM-5-TR), 2022