Recurrent Miscarriage: Understanding and Treating Pregnancy Loss with Traditional Chinese Medicine

By Dr (TCM) Attilio D'Alberto | Traditional Chinese Medicine Practitioner, Wokingham

Recurrent miscarriage — conventionally defined as three or more consecutive pregnancy losses before 24 weeks of gestation — affects approximately 1% of couples trying to conceive, and a further 2–5% of couples experience two consecutive losses. The emotional impact of recurrent pregnancy loss is profound: each loss compounds grief and anxiety, and the cycle of hope and devastation takes a serious toll on physical and psychological health. Yet despite this prevalence and the enormous distress it causes, conventional medicine identifies a specific cause in fewer than 50% of cases.

Traditional Chinese medicine offers both a different diagnostic framework and a different treatment approach. Rather than looking for a single pathological cause, TCM identifies the constitutional and functional patterns that create a uterine environment unable to sustain a pregnancy, and addresses them through a combination of acupuncture, herbal medicine, and lifestyle modification — beginning well before conception to prepare the ground, and continuing through early pregnancy where appropriate to support implantation and placental development.

On this page

1. Recurrent miscarriage: definitions and prevalence
2. Conventional causes of recurrent miscarriage
3. What investigations are needed
4. TCM understanding of recurrent miscarriage
5. Common TCM patterns
6. Acupuncture treatment
7. Chinese herbal medicine
8. Diet, lifestyle and supplements
9. Emotional support and recovery
10. My Fertility Guide
11. References

1. Recurrent miscarriage: definitions and prevalence

The NHS and RCOG define recurrent miscarriage as three or more consecutive first-trimester losses (though many specialists now offer investigation after two losses, particularly in women over 35). The vast majority of miscarriages occur in the first trimester, typically before 12 weeks. Second-trimester losses (12–24 weeks) are less common but have a different spectrum of causes, including cervical incompetence, uterine anomalies, and fetal abnormalities.

It is important to distinguish recurrent miscarriage from sporadic miscarriage — single or isolated pregnancy losses, which are extremely common (approximately 15–20% of all recognised pregnancies end in miscarriage). Sporadic miscarriage is most commonly due to chromosomal abnormality in the embryo and generally does not reflect a pattern requiring investigation. Recurrent loss, however, suggests an underlying factor that makes the uterine or embryonic environment less capable of sustaining pregnancy — and this warrants thorough investigation and treatment.

2. Conventional causes of recurrent miscarriage

The identified causes of recurrent miscarriage include:

• Chromosomal abnormalities in the embryo: Account for the majority of early miscarriages. Parental chromosomal anomalies (balanced translocations) are identified in approximately 2–5% of recurrent miscarriage couples; random chromosomal errors in embryos — increasingly common with maternal age — account for many more.
• Antiphospholipid syndrome (APS): An autoimmune condition in which antibodies (anticardiolipin, anti-β2-glycoprotein I, and lupus anticoagulant) cause clotting in the placental blood vessels, impeding embryonic blood supply. APS is one of the most important treatable causes of recurrent miscarriage, identified in approximately 15% of women with recurrent losses. Standard treatment is aspirin and low-molecular-weight heparin.
• Uterine anomalies: Congenital malformations such as a septate, bicornuate or unicornuate uterus reduce the surface area available for implantation and impair placental development. A uterine septum is the most common anomaly associated with recurrent loss and is correctable by hysteroscopic surgery.
• Thyroid dysfunction: Both overt and subclinical hypothyroidism increase miscarriage risk, as do thyroid antibodies (anti-TPO) even when thyroid function is normal. See thyroid and fertility.
• Luteal phase deficiency: Inadequate progesterone production after ovulation fails to maintain the endometrial lining during implantation. Progesterone supplementation from ovulation (or positive pregnancy test) reduces miscarriage rates in women with a documented history of recurrent loss.
• Thrombophilias: Inherited clotting disorders (Factor V Leiden, prothrombin gene mutation, protein C or S deficiency) increase the risk of placental thrombosis and miscarriage — though the evidence for treatment benefit is less strong than for APS.
• Chromosomal abnormalities in the embryo (age-related): Egg quality declines with age, and the proportion of chromosomally abnormal eggs increases markedly after 35. This is not a cause that conventional investigation identifies directly, but it underlies a significant proportion of recurrent miscarriage in women over 35–40.
• Chronic endometritis: A low-grade infection of the uterine lining, often caused by common bacteria (Ureaplasma, Chlamydia, enterococcus) and typically asymptomatic. Present in up to 30% of women with recurrent implantation failure or miscarriage; treated with a course of targeted antibiotics.
• Unexplained: Despite thorough investigation, no cause is found in approximately 50% of cases of recurrent miscarriage. These women still have a good prognosis for future pregnancy — the live birth rate with supportive care alone is approximately 65–75% — but the lack of explanation is distressing and leaves no direction for specific treatment.

3. What investigations are needed

The RCOG recommends the following investigations for recurrent miscarriage:

• Antiphospholipid antibody testing (anticardiolipin, anti-β2-glycoprotein I, lupus anticoagulant)
• Parental karyotyping (chromosomal analysis)
• Uterine assessment (3D ultrasound, saline sonography, or hysteroscopy)
• Thyroid function including TSH, free T4, and anti-TPO antibodies
• Thrombophilia screen (Factor V Leiden, prothrombin gene mutation, protein C and S, antithrombin)

Additional investigations that may be informative depending on clinical context include progesterone profiling, endometrial biopsy for chronic endometritis, sperm DNA fragmentation, and NK cell testing in specialist recurrent miscarriage clinics.

4. TCM understanding of recurrent miscarriage

In TCM, pregnancy loss is most commonly attributed to insufficiency of the Kidney — the organ system that governs reproduction, the strength of Essence (Jing), and the holding power that sustains a pregnancy. The concept of "Kidney's holding function" is central: the Kidney must have sufficient Qi and Essence to hold the embryo and nourish it through the critical early weeks of development.

The uterus (Bao Gong) and its vessel (Bao Mai) are closely connected to both the Kidney and the Chong Mai (the Penetrating Vessel) and Ren Mai (Conception Vessel) — two of the eight extraordinary vessels that regulate reproduction. Deficiency or disruption in these vessels undermines the uterine environment needed to sustain pregnancy.

Cold invasion — whether constitutional Kidney Yang deficiency or invasion of external cold — is a particularly important concept in TCM recurrent miscarriage. A cold uterus (from pattern perspective: Cold in the Chong and Ren, or Kidney Yang deficiency with cold of the uterus) fails to provide the warm, active circulatory environment needed for implantation and early embryonic development, and is associated with early placental insufficiency.

Blood stasis — impaired circulation in the uterine vessels — impairs the implantation process and prevents adequate nutrient and oxygen delivery to the early placenta. It may underlie the same mechanisms as the thrombophilic and antiphospholipid causes identified by Western medicine, viewed through a different diagnostic lens.

5. Common TCM patterns in recurrent miscarriage

• Kidney Qi and Yang deficiency: The most fundamental pattern — insufficient Kidney Qi fails to hold the pregnancy, while Kidney Yang deficiency creates a cold uterine environment. Symptoms include recurrent early miscarriage (often before 8 weeks), general fatigue, lower back weakness, cold extremities, frequent urination, and a history of delayed puberty, long cycles, or low libido. The tongue is pale, and the pulse is weak and deep, particularly in the kidney position.
• Kidney Yin deficiency with empty Heat: Insufficient Yin creates relative internal heat that destabilises the pregnancy. Symptoms include recurrent miscarriage sometimes with bleeding and restlessness, anxiety, disturbed sleep, sensation of warmth in the evenings, and dry mouth. This pattern is more common in older women with diminished ovarian reserve, women who have undergone multiple assisted reproduction cycles, or those with autoimmune patterns.
• Spleen and Qi deficiency: The Spleen's holding and containing function (which relates to the body's ability to hold things in their proper place) is weakened, failing to support the sustained nourishment and containment of the embryo. Symptoms include general fatigue, easy bruising, poor appetite, loose stools, and a history of haemorrhage. See Spleen Qi deficiency and fertility.
• Blood stasis in the uterus: Impaired circulation through the uterine vessels — often combined with Kidney deficiency or cold. May manifest as dark, clotty periods before pregnancy, pelvic pain, and miscarriage sometimes with significant bleeding and tissue passage.
• Blood Heat: Excessive heat in the Blood disturbs the fetus and can cause bleeding and threatened miscarriage. This pattern may be constitutional, or may arise from emotional heat (intense anger, anxiety, frustration) or from dietary factors.
• Trauma and Liver Qi stagnation: The grief, anxiety and trauma associated with recurrent pregnancy loss themselves become a pathogenic factor — stagnating Liver Qi and disturbing the Shen (spirit/mind), creating a physiological environment that further impairs implantation and early pregnancy maintenance. This is not a psychosomatic dismissal but a recognition that the psychological dimension is physiologically expressed and must be addressed directly.

6. Acupuncture treatment

Acupuncture for recurrent miscarriage focuses on building the constitutional foundation before conception and supporting early pregnancy once conception occurs:

Pre-conception phase: Treatment focuses on strengthening the Kidney Qi and Yang, building Blood, and addressing any stasis or heat patterns identified. Specific points are chosen to tonify the Ren and Chong vessels (Du Mai 4, Ren 4, Ren 12, KD 3, SP 6), warm the uterus (moxa on Ren 4 and Ren 8 for Kidney Yang deficiency patterns), and nourish Blood (SP 10, SP 6, ST 36, BL 17, BL 23).

Early pregnancy phase: Where a woman has a history of early miscarriage, acupuncture during the first 12–14 weeks of pregnancy (or to the point beyond which previous losses have not occurred) supports continued progesterone production, maintains uterine blood flow, and supports the Kidney's holding function. Acupuncture is safe in pregnancy when administered by a qualified practitioner experienced in obstetric acupuncture.

Physiological mechanisms: Acupuncture improves uterine artery blood flow, regulates HPA axis activity and cortisol, supports progesterone production through corpus luteum function, and has immunomodulatory effects relevant to autoimmune-related losses.

7. Chinese herbal medicine

Chinese herbal medicine for recurrent miscarriage is prescribed according to the pattern identified, with particular attention to safety during early pregnancy:

• Shou Tai Wan (Fetal Longevity Pill): The classical formula for habitual miscarriage from Kidney deficiency — contains Tu Si Zi (cuscuta seed), Sang Ji Sheng (mulberry mistletoe), Xu Duan (dipsacus root), and E Jiao (donkey hide gelatin). Nourishes Kidney Essence, strengthens the Chong and Ren, and calms the fetus. This formula has been used specifically for the prevention of miscarriage in TCM for centuries and has been studied in modern clinical trials.
• Bu Shen An Tai Wan: A broader Kidney-tonifying formula that also addresses the Spleen and Blood deficiency components — appropriate for more complex presentations.
• Dang Gui Shao Yao San: Nourishes Blood and Yin, regulates Liver and Spleen, and promotes uterine blood flow — appropriate where Blood deficiency and mild Blood stasis coexist.
• Zhi Bai Di Huang Wan: Nourishes Kidney Yin and clears empty Heat — appropriate for the Yin deficiency pattern with Blood Heat signs.

Herbal treatment is typically established before conception and adjusted as soon as pregnancy is confirmed. Only formulas and herbs that are considered safe in early pregnancy are used during gestation; many standard fertility herbs (Blood-invigorating and stasis-resolving herbs in particular) are contraindicated in pregnancy and must not be used.

8. Diet, lifestyle and supplements

• Optimise egg quality: Age-related chromosomal abnormality is a major contributor to early miscarriage. CoQ10 ubiquinol 400–600mg daily in the preconception period supports mitochondrial function in developing eggs, reducing the frequency of chromosomal error.
• Progesterone support: Discuss with your GP or specialist whether natural progesterone (utrogestan vaginal pessaries) from ovulation or positive pregnancy test is appropriate — evidence supports its use in reducing miscarriage rates in women with a documented history of recurrent loss.
• Vitamin D: Optimise serum levels before conception — vitamin D deficiency is associated with implantation failure and early pregnancy loss. Supplement to achieve 75–100 nmol/L. See vitamin D and fertility.
• Selenium: Selenium deficiency is associated with miscarriage. 200mcg daily during preconception provides adequate selenium status, particularly relevant for women with Hashimoto's thyroiditis.
• Avoid smoking and alcohol completely: Both significantly increase miscarriage risk through direct oxidative and epigenetic effects on the embryo.
• Maintain warmth: From a TCM perspective, avoiding cold — cold drinks, cold environments, cold foods — and maintaining warmth in the lower abdomen and feet supports Kidney Yang and uterine circulation. This is particularly important in the days around ovulation and in early pregnancy.
• Manage stress: The psychological trauma of previous losses elevates cortisol chronically, which impairs both implantation and early placental development. Active stress management — acupuncture, mindfulness, therapy, peer support groups — is an important component of treatment alongside physical interventions.

9. Emotional support and recovery

The emotional dimension of recurrent miscarriage deserves explicit attention. Each loss involves not only the physical experience of pregnancy loss but also the loss of the imagined future — the anticipated child, the anticipated family. Grief is the appropriate response, and it should not be rushed or bypassed. Many women with recurrent miscarriage describe feeling that their losses are minimised by the medical system and by social norms that treat early pregnancy as provisional.

In TCM, the Shen (heart-mind-spirit) is directly connected to the Kidney and to the reproductive system through the Bao Mai (uterine vessel). Chronic emotional distress becomes physiologically embedded — not metaphorically, but through measurable hormonal and immune pathways. Addressing the emotional dimension is therefore not separate from physical treatment; it is part of it.

Alongside acupuncture and herbal medicine, consider: bereavement counselling specialising in pregnancy loss, peer support groups (the Miscarriage Association and Tommy's both provide excellent resources), appropriate timing between conception attempts to allow full psychological recovery, and open communication between partners about grief that often manifests differently in each.

10. My Fertility Guide

11. References

• Rai R, Regan L. Recurrent miscarriage. Lancet. 2006;368(9535):601–611.
• RCOG. The Investigation and Treatment of Couples with Recurrent First-trimester and Second-trimester Miscarriage. Green-top Guideline No. 17. 2011.
• Betts D, Lennox S. Acupuncture in pregnancy and childbirth. J Chin Med. 2006.
• Zhou J, et al. Efficacy of Chinese herbal medicine for the treatment of recurrent miscarriage: a systematic review and meta-analysis. Complement Ther Med. 2020;53:102427.
• Stagnaro-Green A, et al. Thyroid antibodies and miscarriage. J Thyroid Res. 2011;2011:193214.