In around 50% of recurrent miscarriages a cause cannot be identified and is termed as idiopathic (1). Other p ossible causes of recurrent abortion include:
Although the main cause of sporadic miscarriage is foetal chromosomal abnormality, patients with repeated losses tend to miscarry foetuses that are chromosomally normal. Balanced chromosomal translocations occur in no more than 1 in 10 couples.
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