Talk:Multiple birth

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Is it medical article or ..

I find this article, with redirect from Multiple Pregnancy. Looking at this article i don't understand is it medical article or ...zoology, with "List of famous multiple births". Another intersting thing, categories, where this article is included : Biological reproduction | Category:Zoology

So, my suggestion is, if this is med. article, to includ in Childbirth | Pregnancy | Gynecology and make cleanup. otherwise remove redirect to Multiple Pregnancy. thank you Dr.Gangino 03:20, 28 November 2006 (UTC)

Cardinals vs. ordinals

Do any of you know about this??

When it comes to how the births are named, 3 of them (5, 6, 9) use the Laitn ordinals whereas all the others use cardinals. Why?? Georgia guy 18:08, 9 Jun 2005 (UTC)

Race

It is a lie that african women have more twins. I will delete this section since it is used by pseudo-scientific racialist theories. There is no real scientific basis for it.

-- Race and twinning actually does have scientific basis. The Yoruba tribe in Nigeria produces twins at a rate of over 45 per 1000, while Asian populations have a twinning rate of only 4 per 1000. Hormonal rates for egg stimulating hormones have been found in higher concentrations in women of African decent. See the Journal of Reproductive Medicine, 1989 - "The Yoruban Contribution to the Understanding of the Twinning Process" by M Creinin and L.G. Keith.

Seized Triplets

Certain cultures consider multiple births a portent of either good or evil. A Korean tradition stating that triplets are 'lucky' has led to the seizure of all sets of triplets born in North Korea, apparently out of leader Kim Jong-il's fear that one may overthrow him in the future.[1]

What happens to these seized triplets? Morhange 21:00, 27 August 2006 (UTC)

Conjoined triplets

Have there ever been cases of conjoined triplets? I don't see why there couldn't be.

From http://phreeque.tripod.com/conjoined_twins.html:

Can conjoined triplets (or other higher multiples) exist? Dr. Rowena Spencer's 2003 book Conjoined Twins: Developmental Malformations and Clinical Implications discusses several cases of supposed conjoined triplets and quadruplets, most of which consist of one autosite with a number of parasites or acardiac twins (see above). However, a 2004 article in The American Journal of Obstetrics and Gynecology describes a case of parapagus dicephalus dibrachius dipus twins with triplet joined to the shared sternum, in the manner of xiphopagus twins. All three fetuses were well-formed and had approximately normal heads and extremities. This article provides conclusive proof that conjoined triplets, although extremely uncommon, can occur.

I'd say it's extremely unlikely, but possible. Judging by the fact that I couldn't find anything other than vague reports of supposed cases, I doubt any set has survived very long. Eiffelle 22:15, 19 September 2006 (UTC)

Triplet Link

It leads to a disambiguation page, which leads back here-- circular. Shouldn't there be a page just for triplets? (I'm not entirely familiar with Wikipedia's policies or how to edit this.) 69.9.228.20 04:33, 25 November 2006 (UTC)

In fact, almost all of the links in that section are messed up. Most of them are circular, and one of them leads to a page about a TV show. I don't know how to fix that either, so can anyone help with that?—Preceding unsigned comment added by 168.16.134.64 (talk • contribs) 17:53, 6 December 2006

High Risk and Cesarean

While the rate of multiples being delivered by cesarean prior to their due date has been increasing, recently more women are questioning why this is. There are actually women fighting to change these policies, and more women now are having their babies naturally, oftentimes without pain meds and even sometimes at home or at birthing centers rather than hospitals. Maybe there should be an article about this as it pertains to multiple births. It is possible and it is safe. Women need to trust their bodies! —Preceding unsigned comment added by 70.178.71.144 (talk) 05:39, 20 July 2008 (UTC)

A study of triplet birth (http://www.ncbi.nlm.nih.gov/pubmed/15695988) found that cesarean delivery clearly is less risky for triplets. 83.183.242.9 (talk) 13:09, 25 January 2011 (UTC)

I definitely think this should be added to the article- I feel like it is a common myth that multiple pregnancies are bron via cesarean because that's what people think would be the safest, but if we bring up this study, we can start a conversation about this. Wunderline1 (talk) 16:35, 10 December 2023 (UTC)

Twenty offspring – icosuplets

Twenty offspring – icosuplets ? where is the source ?

is it possible to give a birth to 20 identical childs ? 59.92.128.134 (talk) 01:36, 10 January 2009 (UTC)

Seriously...is it really necessary to have the list up through twenty, when eight is the highest recorded number in humans, and -uplets words are not typically used for other species?66.71.70.66 (talk) 17:16, 27 January 2009 (UTC)

They are not called "icosuplets", 20 offspring are called vigintuplets. 24.150.136.68 (talk) 22:55, 25 April 2017 (UTC)

Hi IP, please do not add your terms for more than 10 offsprings back into the article without providing a reliable reference per WP:RS that these terms are 1) the correct terms to be used, 2) they are actually used in the context of indicating the number of offsprings. These do not add anything useful to the article unless the terms are in actual use. Per WP:BURDEN the burden to provide these references is on you.

--Matthiaspaul (talk) 23:28, 25 April 2017 (UTC)

This picture from Mali would be an awesome addition to this article (surviving nine NONUPLETS)

www.theepochtimes.com/extremely-rare-first-ever-surviving-nonuplets-celebrate-1st-birthday-in-perfect-health_4471647.html -- AstroU (talk) 16:29, 11 June 2022 (UTC)

This article needs to cover more about non-human species.

All of the pictures in the article are of humans. Humans are far from the only species with multiple births. Wikipedian06 (talk) 23:43, 29 January 2009 (UTC)

There is a separate article for Litter (animal) linked from the intro.--Knulclunk (talk) 11:30, 25 March 2009 (UTC)

I am not quite sure Litter (animal) covers it: there are other mammalian species which typically have singleton births but in which multiple births are possible. Twin pregnancies in, eg, sheep are not usually referred to as a "litter". Thayvian (talk) 01:12, 31 May 2009 (UTC)

I agree. The article either needs to change the header to just human multiple pregnancies or include much more information regarding other species' multiple pregnancies if they want to keep the little information included about other mammals. Wunderline1 (talk) 16:44, 10 December 2023 (UTC)

Higher Order Multiples: clarification

On identical quadruplets: I think there should be a discussion about how likely it is for an egg to split and then *one* of the resultant eggs to split into two eggs, one of which splits, vs. having the original egg split into two eggs, each of which splits. Is it known? If it's such a rarity, is it possible the former situation never occurs? —Preceding unsigned comment added by 24.61.44.6 (talk) 16:22, 4 March 2009 (UTC)

Given that the zygotes are genetically identical, isn't this a distinction without a difference? Further, wouldn't rather crude and invasive methods of observation, like dyeing, be the only way to answer this question experimentally? As far as I can see, that is about the limit of any practical discussion. — Preceding unsigned comment added by Regulov (talk • contribs) 19:32, 18 February 2012 (UTC)

Chromosome Abnormality and Monozygotic Multiples

The second paragraph goes into some detail about this, but still leaves a lot to be explained. Specifically, the article currently only mentions a few examples of aneuploidy (XXX, XXY, or XYY) and only talks about how XXY and XYY zygote twinning results in gender discordant identical twins, one with XX chromosomes and the other with XY-- which I'm not even sure is true.

I was curious about the subject so I did some poking around PubMed, but was quickly overwhelmed with terminology and concepts I'm not entirely familiar with. I'm not sure of the specifics, but I've found documentation which seems to confirm the existence of:

A single XXY Zygote twinning, resulting in identical twins, both of which had both XX and XY chromosomes. One twin manifested as female while the other was male. (http://www.ncbi.nlm.nih.gov/pubmed/18567067?itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum&ordinalpos=5)

Monozygotic (identical) triplets, two male and one female. The female had Turner's syndrome, meaning she was missing an X chromosome (X0 as opposed to XX), and the males had XY. I'm not sure what chromosomes the zygote had prior to splitting into triplets. (http://www.ncbi.nlm.nih.gov/pubmed/3856681?itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum&ordinalpos=1)

Monozygotic twins were born, both with Down's syndrome, or XXY. No mention of gender in either twin, or chromosomes of the zygote prior to twinning. (http://www.ncbi.nlm.nih.gov/pubmed/15050879?itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum&ordinalpos=11)

Monozygotic twins, both female, born with Turner's syndrome (X0). And again no idea of chromosomes prior to split. (http://www.ncbi.nlm.nih.gov/pubmed/3874586?itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum&ordinalpos=2)

So we've got XXY splitting into XX/XY (male) and XX/XY (female). We got a single zygote splitting into XY (male), XY (male), and X0 (female). A single zygote spliting into XXY and XXY. And finally, a single splitting into X0 and X0. And that's just the cases I found after dicking around the internet for a few hours; not at all exhaustive. Clearly, there's more to the issue than "XXY or XYY split into XY (male) and XX(female)."

Maybe a section dedicated specifically to the possible effects of abnoramal chromosome numbers on multiple monozygotic births is warranted? I'd write it myself, but as I said I'm not real confidant about my understanding of the articles I read. Rather than edit the page with misunderstood and possibly incorrect information, I'd feel better if someone with a firm knowledge base of the issue were to take advantage of the information I've digged up. Or, ignore all my junk and use their sources. I don't really care as long as there's something on the page more substantial than what there currently is.

Or we could briefly mention it and link to a page with more detailed info, but I haven't found anything on Wikipedia like that. Both the Chromosome Abnormality page and Aneuploidy page (and the pages about specific syndromes) lack any mention of how they relate to monozygotic siblings. The Twin page has a very brief mention of XXY zygotes splitting into opposite gender monozygotic twins, but nothing else. And the Triplet page, as mentioned above, doesn't even exist. Let alone multiple births above three. —Preceding unsigned comment added by 71.248.16.81 (talk) 03:27, 30 January 2010 (UTC)

Monozygotic multiples and sex

"Since identical multiples share the same genetic material, they are almost always the same sex." Why is "almost" there? Are there any examples of identical multiples of different sexes? I can't see how it's possible, where would they get the extra X/Y-chromosome from?U.U. (talk) 23:51, 13 August 2011 (UTC)

Identical Twins will almost always be of the same sex. However, it is possible (although rare) in identical male twins for one twin to "lose" a Y chromosome, resulting in an XO chromosome. The twin then becomes a girl with a single chromosome, and will have Turner's Syndrome. — Preceding unsigned comment added by 151.203.191.49 (talk) 20:30, 15 September 2011 (UTC)

Causes and frequency

I have "always understood" that a tendency to produce fraternal twins is hereditary (but that this is so for identical twins). Can anyone confirm this? If so it should be included in this article (probably under this heading) as it is of interest to those families with twins in their family history.Spathaky (talk) 04:02, 29 July 2012 (UTC)

Is there a known explanation for the observed rate of triplets in the US being more than ten times the rate expected under Hellin's law, and for the observed rate of quadruplets being almost fifty-five times the expected rate? Is this solely down to fertility treatments, or are the calculations perhaps flawed? Granted, the observed rates aren't representative worldwide, but natural between-population differences can't explain discrepancies that big, can they? 128.138.65.146 (talk) 22:39, 5 September 2013 (UTC)

Terminology

The terminology list should be expanded back to twenty (20). 174.22.8.140 (talk) 23:58, 4 August 2012 (UTC)

Multiple births - multiple placentas?

The article would be more complete if it indicated whether each baby in a multiple-birth pregnancy has his or her own placenta, or whether they all share one placenta. I tend to believe each baby has its own to prevent the babies' blood from mixing, since the placenta keeps a baby's blood from mixing with the mother's. Anyone care to confirm my supposition? GBC (talk) 04:02, 15 September 2013 (UTC)

As in monochorionic twins versus dichorionic twins, it can vary. Mikael Häggström (talk) 09:50, 6 October 2013 (UTC)

Explanation

Before reinsertion, because I think the text in the box below needs a more clear statement of causality rather than an association, since association does not imply causation. There is already statistics in the single embryo transfer section, so I'll link to it in the meantime. Mikael Häggström (talk) 09:48, 6 October 2013 (UTC)

De Sutter found by looking at a previous study done in 1997, that by using SET (single embryo transfer) the twin birth rate dropped from 30% to 21%. Sutter also found that the use of this transfer method increased from 1.5% to 17.5%. So limiting the number of embryos transferred can reduce the risks of having multiples and so reduce the risks associated with multiple pregnancies.

References

removal of Insurance Coverage section

Unclear why this section is included. It is US specific and doesn't really say anything. I've been on HCUP's case, so would rather not blank it without input from others. Does anyone support/object to its removal? — Preceding unsigned comment added by Millionmice (talk • contribs) 01:48, 13 June 2014 (UTC)

Clarification

I think the following could be cleaned up a bit, I unfortunately do not know how to do so. " In non-humans, the whole group may also be referred to as a litter, and multiple births may be more common than single births. Multiple births in humans are the exception, and can be exceptionally rare in the largest mammals." ClarinetMinuet (talk) 06:41, 30 January 2016 (UTC)

Identical (monozygotic) Triplets

I am hoping that an expert on this such as a physician, biologist, &c can answer and amend the text based upon the question as to whether identical triplets are actually less common than identical quadruplets, as many people have told me over the years yet my search of the internet and Lexis-Nexis has not turned up any article which actually directly addresses the question, at least from the standpoint of the theory that it is more common for an egg to split into four instead of three. A few times I have also heard it theorised that even numbers in multiple births are much more common than odd, six being more common than identical quintuplets, for example . . . — Preceding unsigned comment added by 69.95.62.68 (talk) 17:33, 28 November 2016 (UTC)

External Links

The website under incrediblebirths.com no longer exists. The domain has very recently changed from a US owner to a Chinese owner, also been registered through a different registrar, and there is no longer any content, only a spaceholder page. 84.188.117.30 (talk) 00:56, 22 February 2017 (UTC).

I've deleted the link. Mitch Ames (talk) 12:01, 22 February 2017 (UTC)

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"Quadruplets are sometimes referred to as "quads" in Britain" is partially redundant

Probably accurate but people call Quadruplets Quads in the US as well. Probably could remove the "In Britain" part as it's redundant. Note this is coming from a quad. — Preceding unsigned comment added by 24.216.115.98 (talk) 12:27, 21 February 2019 (UTC)

Triplet babies born in bonn on 7/11/2022

Jessica eisner 2A01:C23:6CB9:E700:D881:5445:9DB3:F619 (talk) 21:52, 29 November 2022 (UTC)

Wiki Education assignment: Human Anatomy Lab

This article was the subject of a Wiki Education Foundation-supported course assignment, between 14 August 2023 and 15 December 2023. Further details are available on the course page. Student editor(s): Wunderline1 (article contribs).

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