THE case for transferring only a single embryo back to the mother in IVF has grown even stronger, because it removes the health risks associated with “vanishing twins”.
Although transferring multiple embryos during fertility treatment is standard practice in most countries, some countries already restrict the number of embryos that can be transferred to two or one. This is because of the much greater risks to the health of the mother and children associated with multiple pregnancies, greater stress for parents, and lifelong effects on the health of the children as a result of their lower birthweight.
Now two studies…
