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What Causes Recurrent Miscarriage?

The most common cause of recurrent pregnancy loss is embryo aneuploidy (abnormal numbers of chromosomes), but other reasons include uterine abnormalities such as fibroids or polyps, infections such as chlamydia, abnormal blood clotting and immune factors (which are some of the more controversial theories about recurrent miscarriage). Recurrent pregnancy loss is defined by two or more failed clinical pregnancies (pregnancies documented by ultrasound or examination), according to the American Society for Reproductive Medicine (ASRM).

The ASRM recommends that after three or more losses, a couple should have a full evaluation; however, many fertility doctors recommend testing after two failed pregnancies. If you have experienced two or more losses and you are over 35, it is wise to go ahead and start the investigation as to why.

Additional Information and Resources on Miscarriage:

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