Recurrent Miscarriage

What is Recurrent Miscarriage?

Recurrent miscarriage, also called recurrent pregnancy loss, is the loss of two or more pregnancies. In the United States it is defined as two or more consecutive failed clinical pregnancies, and in the United Kingdom as three or more consecutive early losses.^[1] About 2 to 2.5 percent of women experience it, and the outlook for a healthy pregnancy is generally good.^{[1, 2]}

Common symptoms

Each loss may involve vaginal bleeding, cramping or pain, or may be found on an ultrasound without any symptoms. Beyond the physical effects, pregnancy loss often brings anxiety, depression and grief.^{[3, 4]}

Causes and risk factors

Causes include chromosomal errors, uterine shape problems, autoimmune disorders such as antiphospholipid syndrome, and problems with the lining of the uterus. In up to half of couples no cause is found.^{[1, 2]}

Risk factors include older maternal age, previous miscarriages, smoking, alcohol, very low or high body mass index and stress.^[3]

How it is diagnosed and treated conventionally

Guidelines advise testing for antiphospholipid antibodies, thyroid function and uterine abnormalities, with chromosome testing on pregnancy tissue after repeated losses.^[5] Aspirin plus heparin is recommended for women with antiphospholipid syndrome, and a Cochrane review found low-certainty evidence that the combination may increase live births.^{[5, 6]} The same guideline advises against aspirin or heparin for unexplained recurrent loss.^[5]

Progesterone has been tried for unexplained recurrent loss, but a 2025 Cochrane review of nine trials found it probably makes little or no difference to the miscarriage rate.^[7] The RCOG guideline still advises considering progestogen for women with recurrent miscarriage who have bleeding in early pregnancy.^[5] Lifestyle advice includes stopping smoking, limiting alcohol and caffeine, and keeping a healthy weight.^[5] Supportive care, ideally in a specialist clinic, is recommended for unexplained recurrent loss.^[5] A Canadian guideline likewise stresses emotional support, trauma-informed care and cautious use of empirical treatments, because the evidence for many of them is limited.^[8]

Why Recurrent Miscarriage calls for a whole-person approach

Recurrent miscarriage has no single cause, and often none is found. Genetics, the uterus, hormones, the immune and clotting systems and general health can all play a part, and the emotional effect of repeated loss is substantial in its own right.

Because the physical causes need specialist assessment, our role is limited. We focus on the parts of care that can sit alongside medical treatment, such as stress, sleep and emotional well-being.

Medical causes need medical care

Recurrent loss is linked to chromosomal, anatomical, autoimmune and endometrial problems, and available treatments target the risk factors found.^[2] Our care cannot assess or treat these.

Lifestyle and general health

Guidelines suggest a healthy weight, no smoking, limited alcohol and limited caffeine for women with recurrent miscarriage.^[5]

Stress, anxiety and mood

Stress is listed among miscarriage risk factors.^[3] Pregnancy loss itself raises the risk of anxiety, depression and post-traumatic stress, and most women experience anxiety, stress and symptoms of depression afterwards.^{[3, 4]}

Acupuncture as supportive care in Recurrent Miscarriage

What the research shows

The evidence that acupuncture helps with recurrent miscarriage is very limited. We found one randomized trial from China in 100 women with recurrent spontaneous abortion and a prothrombotic state, which is a moxibustion trial rather than a needle acupuncture trial. It compared aspirin alone with aspirin plus heat-sensitive moxibustion for three menstrual cycles and reported a higher 12-week pregnancy success rate with the combination (80% vs 54% among the 75 women analyzed). The trial was small, used no sham treatment and was published in a Chinese-language journal, so it cannot be treated as proof.^[9]

Beyond that, we found only case reports. One described a woman with threatened miscarriage after embryo transfer whose bleeding stopped after acupuncture, and another described a 42-year-old with recurrent loss who had acupuncture and herbal therapy and then a live birth. A single case cannot show that treatment caused the outcome.^{[10, 11]}

For emotional well-being, a review of complementary therapies for depression and anxiety in pregnancy found one trial in which acupuncture reduced the number of women diagnosed with antenatal depression. The review rated most studies as high or unclear risk of bias.^[12]

How acupuncture may work

We did not find research that shows how acupuncture might affect pregnancy loss. The authors of the moxibustion trial suggested that it may act by improving a hypercoagulable state, but this was an interpretation of blood test changes, not an established mechanism.^[9]

What treatment involves

Treatment uses fine, sterile, single-use needles, usually left in place for about 20 to 40 minutes, with a course of several visits and reassessment. Because pregnancy and pregnancy loss are medically sensitive, we ask that your obstetric provider knows you are receiving complementary care. Traditional teaching names certain "forbidden" points in pregnancy. A review found no objective evidence of harm from needling at those points in pregnancy.^[13]

In prospective studies, about 9 in 100 patients had a minor reaction such as soreness or bleeding at a needle site, and serious events occurred in about 1 in 10,000 patients. These studies were not specific to pregnancy.^[14] Tell the practitioner first if you are pregnant or may be, have a bleeding disorder, take blood thinners such as heparin or aspirin, or have a pacemaker (relevant to electroacupuncture).

Ayurvedic medicine as supportive care in Recurrent Miscarriage

The Ayurvedic view

In Ayurveda, repeated pregnancy loss is described as Garbhasrava, and traditional texts attribute it to imbalances such as aggravated Pitta and a weak uterine environment. This is a traditional explanation, not a biomedical diagnosis.

Therapies that may be used

Traditional supportive care is individualized and, for someone with recurrent loss, limited to gentle measures:

• Regular, warm, easily digested meals and steady sleep and wake times
• Stress-reducing practices such as breathing exercises and rest
• Individually prescribed herbs, which should be used only with your physician's agreement

Panchakarma procedures, including purgation and enemas, are not appropriate during pregnancy and are not suitable for anyone who may be pregnant.

What the research shows

We found no clinical trials of Ayurvedic treatment for recurrent miscarriage. The only report we found is a single case in which a woman with recurrent pregnancy loss and uterine fibroids was given Ayurvedic cleansing procedures and herbs and then conceived. A case report cannot show that the treatment caused the pregnancy.^[15]

The safety of Ayurvedic products matters here. Public health investigators in New York City found six pregnant women with elevated blood lead levels linked to Ayurvedic medications made in India, and noted that lead can increase the risk of miscarriage.^[16] About one fifth of Ayurvedic medicines bought online contained detectable lead, mercury or arsenic.^[17]

Herbal medicine as supportive care in Recurrent Miscarriage

Herbs and formulas that have been studied

Chinese herbal formulas have been studied mainly for threatened miscarriage, which means bleeding in an early pregnancy that is still ongoing. Threatened miscarriage is a different situation from recurrent loss, and we did not find controlled trials of herbs for preventing recurrent miscarriage.^[18]

What the research shows

A 2023 meta-analysis of 57 randomized trials with 5,881 women found that Chinese herbal medicine, alone or added to Western medicine, was associated with a higher rate of continued pregnancy than Western medicine alone in women with threatened miscarriage. The authors rated the certainty as low to moderate and urged caution.^[18] These results should not be taken as evidence for recurrent miscarriage.

Safety and herb-drug interactions

"Natural" does not mean safe in pregnancy. A review of medicinal plants warned that some herbs can be embryotoxic, stimulate the uterus or act as abortifacients.^[19] For this reason, herbs in pregnancy, or when pregnancy is possible, should be used only with your obstetric provider's agreement.

Herbs can also interact with prescribed medicines, including aspirin, which is used in some women with recurrent loss. Reported examples include bleeding when ginkgo was combined with aspirin or warfarin.^[20] Tell us about every medicine and supplement you take, and any contamination concern about the products you already use.

Translating traditional medicine into modern biological language

This is interpretation, not equivalence. Chinese medicine often describes recurrent loss as kidney deficiency with weak Chong and Ren vessels, sometimes with blood stasis. Researchers testing moxibustion in this pattern measured clotting markers, which loosely parallels the blood-stasis idea.^[9]

Ayurveda's aggravated Pitta and a weak uterine environment have no direct counterpart in tests of the uterus or the immune system, and no study has shown that these concepts correspond to specific causes of pregnancy loss.

How this care fits with your medical care

Recurrent miscarriage needs evaluation and care from an obstetrician or reproductive specialist. Our care is complementary: keep all appointments, and do not stop or change aspirin, heparin, progesterone, thyroid medicine or any other prescribed treatment without your provider. For a condition like this, we ask that you are under a physician's care for it and that your treating team knows you are receiving complementary care.

We do not diagnose the causes of pregnancy loss. Please bring your test results, any pregnancy tissue or karyotype results, your medication list and your treating physician's contact details.

When to seek urgent medical care

Pregnancy loss can cause serious bleeding or infection.^[3]

• Heavy vaginal bleeding, such as soaking a pad an hour for two hours
• Severe or one-sided abdominal or pelvic pain, or shoulder pain with dizziness
• Fever or foul-smelling vaginal discharge
• Fainting, a racing heart or severe weakness
• Thoughts of harming yourself, in which case call or text 988, the Suicide and Crisis Lifeline

For a medical emergency, call 911 or go to the nearest emergency department.