Losing a pregnancy once is painful. Losing more than one can feel unbearable, and confusing, because it’s hard to know what to do next. This guide explains what recurrent miscarriage means, how it’s evaluated, and what treatment may involve — so you can have an informed conversation with your fertility specialist.
What Counts as Recurrent Miscarriage?
Recurrent miscarriage, also called recurrent pregnancy loss (RPL), means losing two or more pregnancies before 20 weeks.
Guidelines differ slightly on when to start testing. ESHRE recommends evaluation after two losses. RCOG’s Green-top guideline has traditionally used three losses as the threshold for full investigation, though many specialists now assess after two, especially if the mother is over 35 or a loss involved seeing a heartbeat first.
Your specialist will factor in your age, history, and each pregnancy’s details to decide when testing should begin.
Signs You Shouldn’t Ignore
Many early miscarriages happen with few warning signs. Still, contact your doctor promptly if you notice:
- Vaginal bleeding or spotting
- Cramping or pelvic pain
- Passage of tissue or clots
- A sudden drop in pregnancy symptoms (like nausea or breast tenderness)
If you’ve had two or more losses, don’t wait for a third before seeking evaluation.
What Causes Recurrent Miscarriage?
In many cases, a clear cause is never found. But a thorough workup identifies a likely factor in a substantial number of couples. The main categories are:
Genetic Factors
Chromosomal abnormalities in the embryo are the single most common cause of early miscarriage, and become more frequent as egg age increases. Karyotyping of either partner may be recommended, along with genetic counselling.
Antiphospholipid Syndrome (APS) and Clotting Disorders
APS is one of the few treatable causes of recurrent miscarriage, usually managed with low-dose aspirin and/or heparin during pregnancy.
Thyroid Function and Antibodies
Both underactive and overactive thyroid function, as well as thyroid autoantibodies, are linked to pregnancy loss. Correcting thyroid levels before conception is standard practice.
Hormonal Conditions Such as PCOS
Conditions like PCOS are associated with a higher risk of early pregnancy loss, largely through their effect on ovulation and hormone balance. If PCOS is part of your history, it’s worth flagging during your evaluation.
Uterine Structural Issues
A uterine septum, fibroids distorting the cavity, or intrauterine adhesions can interfere with implantation. Many of these are correctable surgically.
Unexplained Recurrent Miscarriage
Even after full evaluation, up to half of couples get no definitive answer. This doesn’t mean nothing can be done — many go on to have a successful pregnancy with supportive care alone.
How Evaluation Works
A typical work-up includes:
- Detailed medical and pregnancy-loss history
- Blood tests for thyroid function, thyroid antibodies, and antiphospholipid antibodies
- Parental karyotyping (in select cases)
- Pelvic ultrasound or hysteroscopy to assess uterine anatomy
- Review of any available tissue/genetic testing from prior losses
Not every test is right for every patient — your specialist will tailor the work-up to your history rather than running everything by default.
If age-related egg quantity is also part of the picture, our guide on low AMH and ovarian reserve explains what that test can and cannot tell you.
Treatment Depends on the Cause
There’s no single treatment for recurrent miscarriage — the right approach depends on what the evaluation finds:
- APS/clotting disorders: aspirin and/or heparin during pregnancy
- Thyroid abnormalities: hormone regulation before and during pregnancy
- Genetic factors: genetic counselling, and in some cases preimplantation genetic testing (PGT) with IVF
- Uterine abnormalities: corrective surgery (e.g., septum resection)
- Unexplained cases: close early-pregnancy monitoring and supportive care, which has been shown to improve outcomes on its own
Some couples choose to pause and plan their next pregnancy carefully — if that includes preserving fertility options while investigations continue, our fertility preservation guide covers the choices available.
You’re Not Just a Diagnosis
Recurrent pregnancy loss takes an emotional toll that’s easy to underestimate. Support from a counsellor or psychologist alongside your medical care isn’t a sign that something else is “wrong” with you — it’s a normal part of getting through this.
Evaluation and Care at MotherToBe
At MotherToBe Fertility Clinic & Academy, Madhapur, Hyderabad, recurrent pregnancy loss care is led by Dr. S. Vyjayanthi, MD, DGO, DNB, MRCOG, MSc (Embryology, UK), CCT (UK), a Subspecialist in Reproductive Medicine & Surgery (RCOG, UK) and Director & Consultant Fertility Specialist at MotherToBe.
Her professional roles include President, Telangana Chapter RCOG; Managing Committee Member, The PCOS Society of India; and Managing Committee Member, Fertility Preservation Society of India.
Her background in reproductive medicine and surgery is directly relevant to the causes evaluated in recurrent miscarriage — from endocrine and clotting disorders to uterine structural issues — and to planning next steps for future pregnancies.
Frequently Asked Questions
What is considered recurrent miscarriage?
Most guidelines define it as two or more consecutive pregnancy losses before 20 weeks. Some clinics begin testing after two losses; others wait for three, depending on age and pregnancy history.
What are the most common causes?
Genetic abnormalities in the embryo are the single most common cause. Clotting disorders, thyroid problems, PCOS, and uterine structural issues are also frequently identified. In many cases, no clear cause is found.
Is genetic testing always needed?
No. It’s recommended in specific situations — such as after multiple losses, or when prior pregnancy tissue showed a chromosomal issue — not for every patient automatically.
Can recurrent miscarriage be treated successfully?
Many couples go on to have a healthy pregnancy after evaluation and appropriate treatment, even in unexplained cases where close monitoring alone helps. Outcomes depend on the underlying cause and individual factors, so it’s best discussed directly with your specialist.
What should I bring to my first consultation?
Records of previous pregnancies and any tests already done (ultrasounds, blood work, tissue/genetic results), a list of medications, and your family medical history. This helps your specialist decide what further testing, if any, is needed.
