10 Causes of a Miscarriage
Cause #2: Structural Abnormalities
There are some structural anomalies of the reproductive tract that may result in a miscarriage. Examples include cervical incompetence, fibroids, and congenital uterine defects. A rough estimation found that about 8 to 23 percent of women with recurrent miscarriages may have some uterine abnormality which may be congenital or develop during adulthood.
Since most women with uterine anomalies are asymptomatic, most are not aware before pregnancy. Examples of uterine abnormality include a septate uterus, bicornuate uterus, unicornuate uterus, T-shaped uterus, didelphic uterus, and more.
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