Reproductive Health Information - Miscarriage General
General information on miscarriage & recurrent early pregnancy loss (symptoms, after)
The end of a pregnancy where the embryo or fetus can no longer survive independently. A miscarriage before 6 weeks gestation, calculated from last menstrual period (LMP), is commonly referred to as 'early pregnancy loss', or 'chemical pregnancy'. Miscarriage is the most common complication of pregnancy.
A blighted ovum is characterized by a normal-appearing gestational sac, but the absence of an embryo. This scenario often results in miscarriage. It is a condition where the gestational sac develops normally, but the embryonic part of the pregnancy is either absent or stops growing very early. In other words, the sac that normally surrounds the embryo is present, but there is no developing embryo inside. This can usually be detected by approx. 6 weeks gestation (6 weeks after last menstrual period) via transvaginal ultrasound.
Habitual abortion, recurrent miscarriage or recurrent pregnancy loss (RPL) is the occurrence of three or more pregnancies that end in miscarriage of the fetus, usually before 20 weeks of gestation. RPL affects about 0.34% of women who conceive. The majority (85%) of women who have had two miscarriages will conceive and carry normally afterwards, so statistically the occurrence of three abortions at 0.34% is regarded as "habitual". (wikipedia)