Spontaneous abortion


MSH: Expulsion of the product of FERTILIZATION before completing the term of GESTATION and without deliberate interference.,CSP: the natural premature expulsion from the uterus of the products of conception, the embryo, or non-viable fetus.,NCI: Loss of the products of conception from the uterus before the fetus is viable; spontaneous abortion.,MEDLINEPLUS: <p>A miscarriage is the loss of pregnancy from natural causes before the 20th week of pregnancy. Most miscarriages occur very early in the pregnancy, often before a woman even knows she is pregnant. There are many different causes for a miscarriage. In most cases, there is nothing you can do to prevent a miscarriage.</p><p>Factors that may contribute to miscarriage include</p><ul><li>A genetic problem with the fetus. This is the most common cause in the first trimester.</li><li>Problems with the <a href='http://www.nlm.nih.gov/medlineplus/uterinediseases.html'>uterus</a> or <a href='http://www.nlm.nih.gov/medlineplus/cervixdisorders.html'>cervix</a>. These

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