What Is D-MER? Understanding the Emotional Wave Some Moms Feel While Breastfeeding
Breastfeeding is often described as peaceful, bonding, and deeply nurturing—but for some mothers, it can also come with a sudden and unexpected emotional shift. If you’ve ever felt a wave of sadness, anxiety, irritability, or even rage right before or during letdown, you are not imagining it. What you may be experiencing is something known as Dysphoric Milk Ejection Reflex (D-MER).
And mama—this is something I support clients through more often than you might think
What exactly is D-Mer?
Dysphoric Milk Ejection Reflex (D-MER) is a condition in which a breastfeeding mother experiences a brief but intense wave of negative emotions just before or during the milk letdown reflex.
These emotions can include:
x Sadness
x Anxiety
x Irritability or anger
x A sense of dread
x Emotional heaviness
The key distinction? The emotions are sudden, physical, and short-lived. They typically pass within a few minutes
They are directly tied to milk letdown. This is what separates D-MER from postpartum mood disorders—it is physiological, not purely emotional.
What Causes D-Mer?
Here’s where we lean into both science and humility—because the full picture isn’t completely understood yet.
Current research suggests D-MER is linked to hormonal shifts, specifically involving dopamine. As your body releases oxytocin to trigger milk letdown, dopamine levels drop. For some mothers, that drop may be more abrupt or intense, leading to a temporary emotional crash.Similar to postpartum mood and anxiety disorders (PMADs), D-MER is suspected to be hormonally driven, even though there is no single agreed-upon cause yet.
Is D-Mer Actually “Real”?
Yes—D-MER is documented in medical literature and recognized by organizations like the National Institutes of Health. However, it is still under-researched and not universally diagnosed, which is why so many mothers feel confused or dismissed when they try to explain their experience.
But here’s what matters:
The pattern is consistent
The experience is shared by many mothers
And it has a physiological basis
You are not making this up.
How Common is it?
Current estimates suggest around 5–9% of breastfeeding mothers experience D-MER. But in my work with families, I strongly believe it’s underreported. Many moms:
Don’t have language for what they’re feeling
Assume something is “wrong” with them
Or are told to just push through
And let’s be clear: Common does not equal normal—or something you have to suffer through alone.
How long does it last?
Each emotional wave typically lasts: 30 seconds to 2 minutes
Over time, many mothers find that:
Symptoms lessen
Episodes become more manageable
Or resolve completely before weaning
But for some, it can persist throughout breastfeeding.
What Can you do to Support your Body?
There is no one-size-fits-all solution—but there are ways to support yourself through it:
Awareness Changes Everything: Knowing this is physiological can remove fear and self-blame.
Support Your Nervous System:Try:
Deep, slow breathing during letdown
Skin-to-skin contact
Creating a calm feeding environment
Support Hormonal Balance
Prioritize rest where possible
Eat regularly and nourish your body
Get natural light and gentle movement
Get Support: This is not something you need to navigate alone.
What Should you Avoid?
If you suspect D-MER, try to minimize:
Running on empty without support
Excess caffeine
Ignoring or suppressing what you’re feeling
Most importantly—don’t dismiss your experience.
Should you Stop Breastfeeding?
This is where I want to speak to you as both an educator and a doula:
You do not have to quit breastfeeding just because you’re experiencing D-MER. But you also don’t have to push through something that feels overwhelming without support. The goal is not to “tough it out.” The goal is a supported, nourished mother.
Sometimes that looks like continuing breastfeeding with support. Sometimes that looks like adjusting your journey.
Both are valid.
What Kind of Support Should You Seek?
Support should be personalized and holistic:
Postpartum & Breastfeeding Support- Working with a doula (hi, that’s me ) can help you:
Understand what’s happening in your body
Create a plan that feels sustainable
Feel emotionally supported through the process
Mental Health Support- A perinatal therapist can help if:
Emotions feel overwhelming
Symptoms extend beyond letdown
You need additional tools and processing space
Faith- Based / Biblical Counseling-For moms who desire it, this can offer:
Spiritual grounding
Peace in the midst of intensity
A deeper sense of purpose and support
You don’t have to choose just one—whole-person support matters.
My Heartfelt Reminder to YOU!
If you’re reading this and thinking,
“Wait… this is exactly what I’ve been feeling…”
I want you to know:
I see you.
I believe you.
And I support moms through this exact experience.
WORK WITH ME
Inside my postpartum and breastfeeding support, I help you:
Understand what’s happening in your body
Create a feeding plan that aligns with your values
Feel supported emotionally, physically, and holistically
If you’re struggling with breastfeeding or D-MER, let’s talk.
Resources:
Heise, A. M., & Wiessinger, D. (2011). Dysphoric Milk Ejection Reflex: A Case Report. International Breastfeeding Journal.
National Institutes of Health. Dysphoric Milk Ejection Reflex (D-MER).
Cleveland Clinic. Dysphoric Milk Ejection Reflex (D-MER): Symptoms & Causes.
Lawrence, R. A., & Lawrence, R. M. (2021). Breastfeeding: A Guide for the Medical Profession.
Riordan, J., & Wambach, K. (2010). Breastfeeding and Human Lactation.
Postpartum Support International. Perinatal Mood and Anxiety Disorders Overview.
