No special medical care is necessary with an uncomplicated vanishing twinA vanishing twin, also known as twin resorption, is a fetus in a multigestation pregnancy that dies in utero and is then partially or completely reabsorbed. In some instances, the dead twin is compressed into a flattened, parchment-like state known as fetus papyraceus.https://en.wikipedia.org › wiki › Vanishing_twin