Twins and Multiples Directory

A woman has a multiple pregnancy if she's carrying more than one baby in her uterus. Causes of multiple pregnancy may be pure chance, heredity, older age at pregnancy, or the result of fertility treatments. Risks of multiple pregnancies include preeclampsia, gestational diabetes, premature delivery, and miscarriage. Follow the links below to find WebMD's comprehensive coverage about how multiples/twins develop, causes of multiple pregnancies, risks of multiple pregnancies, and much more.

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