Losing one pregnancy is devastating. Experiencing multiple losses can feel unbearable. Recurrent miscarriage, while deeply painful, is a recognised condition with known causes and treatments. You deserve thorough investigation, appropriate treatment, and compassionate support.
What Is Recurrent Miscarriage?
Recurrent miscarriage (also called recurrent pregnancy loss or RPL) is traditionally defined as three or more consecutive pregnancy losses before 20 weeks. However, many specialists now offer investigation after two losses, recognising the significant emotional impact. Recurrent miscarriage affects about 1% of couples trying to conceive. Most pregnancy losses occur in the first trimester, but second-trimester losses are also included. Having recurrent losses does not mean you cannot have a successful pregnancy. Even without treatment, many couples eventually have a healthy baby.
What Causes Recurrent Miscarriage?
Chromosomal abnormalities: Random genetic errors in the embryo are the most common cause of any single miscarriage. While usually random, some couples have higher rates of abnormal embryos.
Uterine abnormalities: Fibroids, polyps, uterine septum (a wall dividing the uterus), or scarring (Asherman syndrome) can prevent successful implantation or pregnancy continuation.
Blood clotting disorders: Antiphospholipid syndrome (APS) and other thrombophilias can cause blood clots in the placenta, cutting off oxygen to the baby.
Hormonal factors: Thyroid disorders, uncontrolled diabetes, or progesterone insufficiency may contribute to pregnancy loss.
Immune factors: While controversial, some evidence suggests immune system dysfunction may play a role in some cases.
Parental chromosomal issues: In about 3-5% of couples with recurrent loss, one partner carries a balanced chromosomal translocation that increases miscarriage risk.
Unexplained: Despite thorough testing, about 50% of recurrent miscarriages have no identified cause.
Investigations You May Be Offered
Blood tests for both partners: Karyotype (chromosome analysis), blood clotting studies, thyroid function, blood sugar, and antiphospholipid antibodies.
Uterine assessment: Ultrasound, saline sonogram (SIS), hysteroscopy, or MRI to examine the uterine cavity for abnormalities.
Genetic testing of pregnancy tissue: If possible during a miscarriage, testing the tissue can identify chromosomal causes.
Hormone testing: Day 3 FSH, estradiol, AMH, and potentially mid-luteal progesterone levels.
Additional tests may be recommended based on your specific history and initial results.
Treatment Options
Surgical correction: Removing fibroids, polyps, or uterine septum when present. Treatment of Asherman syndrome.
Blood thinners and aspirin: Low-dose aspirin and heparin injections are highly effective for antiphospholipid syndrome.
Progesterone supplementation: May help some women with low progesterone, though evidence is mixed.
Thyroid treatment: Optimising thyroid levels if abnormal.
IVF with PGT: Preimplantation genetic testing can select chromosomally normal embryos, potentially reducing miscarriage risk.
Lifestyle modifications: Stopping smoking, limiting alcohol, managing weight, and reducing stress.
Supportive care: Close monitoring, early scans, and emotional support in early pregnancy significantly improve outcomes.
What Are the Chances of Success?
Even after three miscarriages without treatment, the chance of a successful next pregnancy is about 60-75%. With appropriate treatment for identified causes, success rates are even higher. Women with antiphospholipid syndrome who receive treatment have success rates of 70-80%. Younger women and those with fewer previous losses generally have better outcomes. Your fertility specialist can give you personalised statistics based on your specific situation and test results.
Emotional Support and Self-Care
Grief after pregnancy loss is profound. Multiple losses compound this grief. Allow yourself to mourn each loss.
Anxiety about future pregnancies is normal and expected. This does not mean you should not try again.
Seek counselling from someone experienced in pregnancy loss. This is not a sign of weakness.
Connect with support groups. Others who have experienced recurrent loss truly understand.
Take breaks from trying if you need them. Your emotional health matters.
When you do become pregnant again, ask for early monitoring and support to manage anxiety.
Remember that having a rainbow baby is possible for most couples with recurrent loss.
Educational information, not medical advice. For advice about your own situation, talk to your doctor.