04 Importants Things To Know About Siamese Twins

David Kipre


Uncommon and of undetermined cause. The “Siamese twins”, by the way it is a pleonasm since the Siamese twins are necessarily twins, are submitted to many questions because of their dissimilarity and even their strangeness. Then to the question: How can their physiological malformation be explained? and the questions that surround it, we will give you the answers right here in this article.

I- How they were born?

1- Who do we call Siamese?

Of course, you already know this, but it’s no matter to mention it again. Siamese twins, otherwise known as ” joined twins “ are those twins whose particularity is that they are stuck together or attached by a part of the body. Most often by the thorax, sometimes by the back-to-back and rarely welded by the brain or by the heart.

2- How is their deformity explained?

Since the first Siamese cases were classified, no scientific theory has been able to give a concrete explanation to this phenomenon. There are two possible explanations for this phenomenon: the first is that the embryos of the twins do not separate properly shortly after fertilization and the second, the best known, is that the two embryos merge when they are already separated.

II- The frequency of cases

The probability of having joined twins is estimated to be 1 in 100,000 births. And this figure is higher in the case of Siamese boys. The explanation for this low rate of occurrence would be that most do not survive to birth and even if they do, those unlucky enough to share the same heart or brain with their twins will have a very low life expectancy.


since the widespread use of ultrasonography in several countries, the diagnosis of twins being made as early as the twelfth week during the systematic examination allows the pregnancy to be interrupted when the chances of survival are judged too low.

III- Can they be separated?

Of course, this can be done through a surgical operation that will have to be performed between two and four months after their birth, thus giving the newborns time to adapt. And, this is possible, if and only if there is not a big overlap, that is to say that no vital organ is fused. This is a very delicate operation that sometimes results in the death of one or both twins. However, it can sometimes be necessary to preserve the life of one of the twins. This is the case of Jodie who had a normal brain, a heart and lungs in perfect condition but had to be separated from her sister Mary who had a brain that did not develop and a heart and lungs that were not functional. So far 250 Siamese twins have been successfully separated worldwide.

IV- How these twins live

We are all, especially the parents, curious to know how Siamese twins manage to integrate into society. You will be happy to know that they lead a fulfilled life not exactly as we do, but in their own way. This is the case of Marieme and Ndeye, the Siamese sisters of Senegalese origin who were given 4 days to live at birth by their doctors, recently started school. Their homeroom teacher even said that the girls have made friends and are “laughing a lot”. We also have brothers Sohna and Mohna, in India, who were caught up in a passion for electronics and managed to graduate as electrical technicians and were rewarded with a job in a power plant. We cannot talk about the life of Siamese twins without mentioning the “Siamese brothers” Chang and Eng Bunker, two twins who were so much in the news during the 19th century because of their multiple appearances in circuses and fairs, that the term Siamese was borrowed from Siam (now Thailand), their birthplace. They had 21 children between them (10 and 12) with two different women.

For a total immersion in the life of these particular beings we would be of the opinion that this article did not satisfy you completely, that is why we advise you some films which put in light their life. So we have for you:

Stuck on you  comedy based on a story of Siamese brothers, played by Matt Damon and Greg Kinnear or a very touching documentary called Masha and Dasha: Siamese Sisters : documentary about the sisters Masha and Dasha Krivoshliapova.

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