According to the American Pregnancy Association (2017), about 10-25 percent of recognized pregnancies end in miscarriage. Most of these occur because of ________.

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Chromosomal abnormalities are the most common cause of miscarriage, accounting for up to 80 percent of cases. Other factors such as maternal age, hormonal imbalances, infections, and medical conditions such as diabetes or thyroid problems may also contribute to miscarriage, but chromosomal abnormalities are the most prevalent. Sexual intercourse during late pregnancy, nutritional deficiencies, and presence of multiple fetuses may increase the risk of complications during pregnancy but do not directly cause miscarriage.

According to the American Pregnancy Association (2017), About 10-25 Percent