Why Do Some Postpartum Depression Patients Respond to Acupuncture and Others Don't?

A 2023 clinical trial out of Shenzhen followed 96 postpartum depression patients through 8 weeks of acupuncture and found something worth sitting with. The symptom improvement was real and clinically meaningful, a mean reduction of 5.31 points on the Hamilton Depression Rating Scale, well past the accepted threshold for a clinically important change. 

But when researchers split the group into responders and non responders and drew blood before and after treatment, the two groups told different immune stories. Responders showed lower IL-6, lower IL-10, lower IFN-gamma and a sharp rise in TGF-beta1. Non-responders showed some of that same anti-inflammatory shift, TGF-beta1 rose in them too, but they also carried rising IL-5 and TNF-alpha that responders did not (Xu et al, Journal of Inflammation Research, 2023). The takeaway for practitioners is not that acupuncture cured depression in this study. There was no control arm, every subject received treatment, so we cannot say the improvement came from the needles alone and not from the natural course of postpartum recovery. What we can say is that response and non response may not be a coin flip. It may be a visible immune pattern.

I think about the postpartum body the way I think about Tian Gui after birth, a well that has just been drawn down hard and is trying to refill itself while also feeding a newborn. Blood and qi are depleted. The Liver, asked to hold smooth flow through a body still recovering from labor, hemorrhage, sleep loss and the sheer volatility of new motherhood, often cannot keep pace. When Liver qi stagnates on top of blood deficiency, what shows up clinically looks a great deal like what this study measured in the blood. Inflammation is not just a number in a lab report. It is the physical signature of a system straining to regulate itself.

Sure, we already knew acupuncture had a role in postpartum depression. Prior systematic reviews have shown it (Li et al, 2018, 2019). What this study adds is a reason some patients need more than 16 sessions to get there.

Look at the acupuncture protocol this trial used: Baihui (GV20) and Yintang (EX-HN3) to calm shen and lift the Governing Vessel, Zhongwan (CV12), Qihai (CV6) and Guanyuan (CV4) to rebuild depleted qi at its root, Neiguan (PC6) and Shenmen (HT7) to settle the Heart and Pericardium, Hegu (LI4) and Taichong (LR3), the Four Gates, to move stagnation, and Sanyinjiao (SP6) to nourish Liver, Spleen and Kidney blood together. This is a textbook postpartum depletion and stagnation protocol. It did real clinical work in this trial. And yet a meaningful subset of patients, 25 of the 46 who gave blood, showed only a partial immune response alongside their partial symptom response.

That is not a failure of the protocol. It is data. A patient whose TNF-alpha is still climbing at week 8 is a patient whose underlying inflammatory load may need a longer course, an adjunctive approach, or closer collaboration with her OB or psychiatric provider rather than more of the same points at the same dose.

As acupuncturists, we are often the first provider to have eyes on a postpartum patient twice a week for two months straight. We take the pulse. We watch the tongue. We ask the questions her six week OB check does not have time for. This kind of research gives us language for what we are already sensing in the room, that some patients are responding fully and some are responding partially, and that the partial responders deserve a plan, not a shrug.

If you treat postpartum patients and want to build out a fuller clinical framework for reading response, adjusting protocols, and knowing when to escalate care, that is exactly the kind of case based training we work through together.

If this is a question you are sitting with in your own practice, book a discovery call. Let's talk through what you are seeing in your postpartum patients and how to sharpen your clinical read on who needs what.

Bio: Dr. Krystal Lynn Couture, DPT, LAc, founder of The Pelvic Acu, is an acupuncturist and physical therapist specializing in Pelvic Health. As a pelvic care acupuncturist, she brings to her practice a background steeped in both biomedical, TCM and holistic knowledge. She has an extensive formal background, with a Doctorate in physical therapy from Husson University as well as a Master of Science in acupuncture from the Institute of Taoist Education and Acupuncture. Krystal teaches Pelvic Care to Acupuncturists around the globe!