How to Prevent Miscarriage with PCOS
By Dr (TCM) Attilio D'Alberto | Traditional Chinese Medicine Practitioner, Wokingham
Women with PCOS face a significantly higher risk of miscarriage than women without the condition — approximately 30–50% higher in most studies. This elevated risk is not simply a consequence of difficulty conceiving; it persists even when conception is achieved, and understanding its causes is the first step towards reducing it. In traditional Chinese medicine, the patterns underlying PCOS — kidney yang deficiency, phlegm-dampness, and blood stasis — create an inhospitable uterine environment that compromises both implantation and early pregnancy maintenance.
Why PCOS Increases Miscarriage Risk
Several mechanisms are implicated. Elevated LH levels in PCOS — present in many women before ovulation — appear to reduce oocyte quality and impair fertilisation and early embryonic development. Insulin resistance (the metabolic driver of most PCOS) impairs progesterone production in the luteal phase, reduces endometrial receptivity, and creates a pro-inflammatory uterine environment. Elevated androgens directly interfere with endometrial function. Obesity — common in PCOS — independently increases miscarriage risk through its effects on embryo quality and the hormonal milieu.
TCM Patterns Contributing to Miscarriage in PCOS
Kidney yang deficiency — the dominant PCOS pattern — produces insufficient warmth and hormonal support in the luteal phase. Low progesterone, a thin or unreceptive endometrium, and impaired embryo implantation all follow from inadequate kidney yang. Phlegm-dampness creates a congested, inflammatory uterine environment. Blood stasis impairs uterine blood flow and the development of the placental circulation in early pregnancy.
Acupuncture
Acupuncture addresses all three patterns simultaneously — it tonifies kidney yang, resolves phlegm-dampness, and moves blood stasis. Research has shown that acupuncture improves progesterone levels, reduces LH/FSH ratio, lowers testosterone, and improves insulin sensitivity in PCOS patients. Treatment should ideally begin three months before a planned conception attempt and continue through the first trimester if pregnancy is achieved — the highest risk period for miscarriage.
Chinese Herbal Medicine
Herbal treatment in the luteal phase focuses on kidney yang tonification to support progesterone and the implantation window. You Gui Wan and Jin Gui Shen Qi Wan warm and tonify kidney yang. Tu Si Zi, Xu Duan, and Sang Ji Sheng are the classical foetus-calming herbs. In early pregnancy I adjust the formula to a pregnancy-safe stabilising protocol — strong blood-moving herbs are stopped. I prescribe pharmaceutical-grade granules from Sun Ten in Taiwan throughout.
Lifestyle Measures
Achieving a healthy BMI before conception is the single most impactful lifestyle change for reducing PCOS miscarriage risk. Even a 5–10% reduction in body weight significantly improves insulin sensitivity, lowers androgens, and improves egg quality. A low-glycaemic diet, inositol supplementation, and regular moderate exercise address the insulin resistance that underlies much of the elevated risk. Folic acid (400mcg) should be started before conception and continued through the first trimester.
To discuss PCOS and pregnancy support, contact me or book a consultation in Wokingham.
