Recurrent Pregnancy Loss: Causes & Treatment Options

Recurrent pregnancy loss affects 3% of couples, with 70-75% success rates after targeted treatment. Dr. Jeff McKeeby explains that diagnosis often begins after two miscarriages, linking causes to chromosomal abnormalities, clotting disorders, and anatomical issues.

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Key Takeaways

Recurrent Pregnancy Loss Now Defined After 2 Miscarriages

Modern guidelines recommend evaluating patients after two consecutive miscarriages instead of three, as the risk of a third miscarriage rises to 25% after two losses. Early evaluation helps identify treatable causes like clotting disorders or uterine abnormalities.

Chromosomal Abnormalities Are Leading Cause of Miscarriage

Approximately 50% of miscarriages result from random chromosomal abnormalities in the embryo, increasing with maternal age. Testing the lost pregnancy tissue (karyotype) is critical for accurate diagnosis beyond parental testing.

Tailored Treatments Improve Pregnancy Outcomes

Conditions like thrombophilia can be managed with Lovenox injections during pregnancy, while anatomical issues (e.g., uterine septum) may require surgical correction before conception. These interventions significantly reduce recurrence risks.

PGD for Genetic Screening in Balanced Translocation Cases

Preimplantation genetic diagnosis (PGD) is recommended for couples with balanced translocations. This IVF-based testing identifies chromosomally normal embryos, offering a 2-10% recurrence risk reduction depending on the parent’s translocation type.

Lifestyle Factors Strongly Influence Pregnancy Success

Maintaining optimal nutrition, folic acid intake, and overall health are critical. Younger women (<40) have naturally lower miscarriage risks, but all patients benefit from proactive health management before and during pregnancy.

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