Do you know several types of pregnant twins?

Having a pair of twins, may be for most of the parents, is a thing that can not be sought, after all, the probability of natural conception to conceive twins is less than 1%, but the prospective mothers who are pregnant with twins may still be relatively unfamiliar with several types of twins.

Twin types are generally divided into three types:

Double cashmere double sheep: Each fetus has its own chorionic membrane and amniotic membrane, which is equivalent to two babies living in two different rooms. This is one of the safest types of twins, and most twins are double cashmere goats. It may be fraternal twins or it may be identical twins. There are two placentas, if the fetus is older than the number of weeks to check, it may be a placenta, because it is possible that the two placentas have gone together and cannot be separated. In terms of gender, it may be two men, two women or a man and a woman, the relative probability is two men or two women, the probability of dragon and phoenix fetus is relatively low, about 25% of the probability is dragon and phoenix fetus. In terms of appearance, the fraternal twins will not be exactly the same, there will be differences, while the identical twins will look the same.

Single-lined double sheep: one chorionic membrane, two amniotic capsules, which is equivalent to two babies living in different rooms in the same house. This twin type is likely to develop transfusion syndrome and selective growth restriction, which requires special attention during pregnancy. It is an identical twin with only one placenta. In terms of gender, it may be two males or two females, and it may not be a dragon and phoenix fetus. Looks exactly the same.

Single cashmere single sheep: one chorionic membrane, one amniotic capsule, which is equivalent to two babies living in the same room in the same house. This twin type shares a placenta, is more dangerous than single cashmere goats, and is more likely to have conditions during pregnancy, such as umbilical cords intertwined. However, the probability of conceiving this type of twin is very small, less than 1%. In terms of gender, like the single cashmere double sheep, it may be two men or two women, and it may not be a dragon and phoenix fetus. Looks exactly the same.