Understanding Hidden Twins: What Are Vanishing Twins?

Discover the fascinating concept of hidden twins, or vanishing twins, and their occurrence in multifetal pregnancies.

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The occurrence of hidden twins, also known as vanishing twins, is relatively rare in pregnancies. Estimates suggest it happens in about 1 in 8 multifetal pregnancies. Due to its early occurrence in the first trimester, it's often not detected unless early ultrasounds are performed.

FAQs & Answers

  1. What are hidden twins? Hidden twins, or vanishing twins, occur when one twin disappears during early pregnancy, often undetected in early ultrasounds.
  2. How often do hidden twins occur? Hidden twins occur in about 1 in 8 multifetal pregnancies, particularly in the first trimester.
  3. Can vanishing twins affect the surviving twin? In some cases, vanishing twins can influence the health of the surviving twin, depending on factors like gestational health.
  4. What signs indicate a hidden twin? Typically, hidden twins are not detected without an early ultrasound, and signs may only appear after pregnancy tests or symptoms manifest.