What Causes Miscarriage

Up to 20 percent of known pregnancies end in miscarriage. Learn about the most common causes and whether they are preventable.

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[MUSIC] Up to 20% of known pregnancies end in miscarriage. So the most common reason for miscarriage is genetics. The egg and the sperm join incorrectly and the number of chromosomes is abnormal. Usually these mutations are spontaneous. They're not passed down genetically. And won't necessarily happen with the next pregnancy. There are also certain uterine abnormalities and medical conditions which can increase your risk of miscarriage. These medical conditions can include uncontrolled diabetes, severe thyroid disorder. Also, there are certain rare clotting and autoimmune disorders which can cause miscarriage. Sometimes we can't determine the exact cause of miscarriage but I do tell patients to remember that it's not because they went running or forgot to take their pre-natal vitamin. It's nothing they did or didn't do and most likely they'll go on to have a healthy next pregnancy. [MUSIC]

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