8 types of twins so little is known
In most twin pregnancies, the embryo is separated from two or more babies. But when the embryo is not fully separated and remains physically connected, these twins develop into conjoined twins.
It is estimated that conjoined twins are present in about 1.5% of 100,000 births worldwide. About 75% of conjoined twins are women.
The term conjoined twins is actually not used in the medical world. Indeed, this term refers to the famous twin birth case in Thailand, in the 19th century.
Specific symptoms during conjoined twin pregnancy
There are no specific signs or symptoms that indicate the pregnancy of the conjoined twins. The cause of the conjoined twins is not known with certainty. Because this condition is very rare, there are no known risk factors that can contribute to twin pregnancy.
8 types of conjoined twins
Siamese twins can share members in one or more places. In addition, Siamese can also share parts of the body or other internal organs. The type of conjoined twins depends on the position of the member who joins.
1. Thoracopagus or xiphopagus twins
Conjoined twin-breasted piston, joined in the chest. The twins who sit in this group share the heart, heart and other upper body organs. Most cases of conjoined twins fall into this category.
2. Craniopagus twins
Twin craniopages join to join the head, precisely in a certain skull area, and the back, top or side of the head, but the faces of the two do not meet. Conjoined twins share parts of the skull, but usually have separate brains.
3. Parapagus twins
The twins ready from parapage are connected to the sides of the body, specifically to the hips, chest and abdomen. They can be part of the stomach partially or completely.
Conjoined twins can have many limbs, with two different heads
4. Otompopopagus twins
The omphalopagus conjoined twins meet near the stomach or navel. Conjoined twins usually share the liver or lower body organs, such as the small intestine.
5. Ischiopagus twins
Types of conjoined conjoined conjoined ischiopagus conjoined with the pelvic area, either face to face or back to back. These conjoined twins, share the liver, digestive system, genital or urinary tract.
6. Pygopagus twins
The conjoined twins usually join the Pygopagus back, precisely in the lower spine and buttocks. Some conjoined twins share the digestive tract or even the genitals.
7. Cephalopagus twins
Conjoined twins of the cephalopagus join the face and upper body. Two conjoined twin faces appear on both sides of the same head and share a brain. However, conjoined twins like this rarely survive.
8. Rachipagus twin or rachiopagus
Siamese Siamese from Rachipagus are connected to the back of the body, precisely along the spine. However, this type of conjoined twins is very rare.
After the birth of conjoined twins, the decision to separate depends on the success of the procedure.
In many pregnancies, conjoined twins die in the womb or do not last long after birth. However, some were able to survive and succeed in their separation.
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