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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To be disturbed by wilfull ignorance around genetic inbreeding?

772 replies

M9009 · 26/01/2026 19:41

I've come from a country were cousin marriage and indeed marriage to any close relative if illegal.
I've recently started working in a dialysis unit and I'm so disturbed by how many parents are young children born of first cousin marriage. Usually from South Asian backgrounds.
Today I was speaking to one parents who has 9 children, all in need of kidney transplants. The eldest 2 have already had theirs. Parents are first degree cousins and each have various medical problems of their own.
Why, as a society, do we allow these marriages? It seems so cruel to the children who are born with medical and genetic problems.
Maybe I'm easily shocked, I don't know.

OP posts:
Thread gallery
16
Jenkibubble · 26/01/2026 20:28

M9009 · 26/01/2026 19:41

I've come from a country were cousin marriage and indeed marriage to any close relative if illegal.
I've recently started working in a dialysis unit and I'm so disturbed by how many parents are young children born of first cousin marriage. Usually from South Asian backgrounds.
Today I was speaking to one parents who has 9 children, all in need of kidney transplants. The eldest 2 have already had theirs. Parents are first degree cousins and each have various medical problems of their own.
Why, as a society, do we allow these marriages? It seems so cruel to the children who are born with medical and genetic problems.
Maybe I'm easily shocked, I don't know.

Ive seen similar in education ( learning difficulties and disabilities )

JoanOgden · 26/01/2026 20:30

Like other posters have said, the big risk is repeated cousin marriage, not so much a one-off. And it would be hard legally to ban cousin marriage without banning disabled people with genetic conditions generally from having kids, which would start to feel a bit like eugenics.

But bizarre that the NHS said it was OK. There should be a really hard-hitting campaign to educate people in affected areas.

CraftyNavySeal · 26/01/2026 20:30

Keroppi · 26/01/2026 20:17

Yes, it's also crazy people still are banging on about discussing this being racist or a racist stereotype. It's actually more racist to argue that imo - what like all brown people from s Asia are the same and have just 1 culture? There's so many different tribes and mini cultures and orthodoxy of religion plays a massive part. First cousin marriages are more common in stricter Muslim families and families who don't live in large communities so don't have a large dating pool. Saying that, it's also a financial thing too. I think its like 60% of all marriages in Saudi are cosanginous. Super high in Egypt too. So not just a Pakistani thing. But I appreciate a lot of our communities practising this in the UK are prob Pakistani

Saudi Arabia and other Arab countries have been doing a massive educational drive for almost 15 years. They make people get genetic testing before they get a marriage license! And if the couple test high, they do genetic counselling and try and persuade not marrying or marrying and not having kids. Or abortion for health reasons if the imam say its ok. Or having kids anyway but getting them genetic tested and treated early on before the (if treatable) genetic diseases can cause intellectual or physical disability or other health issues.

Arab countries can do that because legal marriages are Islamic marriages and the law is Sharia law.

In the U.K. it’s not the case. Any laws surrounding legal marriage do not impact Islamic marriage because they are not legally recognised in the first place. The same way I could have a pagan hand fasting “marriage” to 3 men but it’s not legally recognised.

The only way to fix this would be if Islamic marriage becomes legally recognised (which it won’t because it follows Sharia law not British civil law) or change the incest laws to include cousins, which would involve criminalising a lot of people.

That or a hell of a lot of education. The Jewish community voluntarily introduced genetic testing because they wanted to fix the problem.

Incalescent · 26/01/2026 20:32

iamDebbie · 26/01/2026 20:25

Yanbu.

I think anyone that knowingly breeds with their 1st or second cousin, should sign a waiver that protects the NHS and subsequent health services, from the financial burden that any inbreeding may bring.

Why should the NHS foot the bill when the risks are well known and documented. The people that choose to reproduce with their cousins knowing these dangers, should be made to foot the bill.

And would you say the same to someone with a heritable disability who plans to have a child?

Simplelobsterhat · 26/01/2026 20:34

Fairyliz · 26/01/2026 19:43

It’s not ignorance, people know about it but are afraid to speak up for fear of being called racist.
Im not sure what the answer is.

I don't think it's just about not wanting to look racist. It was legal in UK long before most of those immigrant groups people are referring to arrived. My DH has first cousins who are married in his family, and they are white from South England (and not upper class!). So as a county Britain has accepted it in living memory, it's not something that has been imported.

That said I agree it should be banned or educated against now, especially if it is becoming more common again, not only for public health reasons but also i feel like there is more scope for grooming and abuse within a family.

iamDebbie · 26/01/2026 20:34

Incalescent · 26/01/2026 20:32

And would you say the same to someone with a heritable disability who plans to have a child?

It's not the same thing...

MrsKateColumbo · 26/01/2026 20:37

Maybe they should put the Habsburgs of the school curriculum!

ThePoshUns · 26/01/2026 20:38

I worked in a city with a big South Asian population, in child protection. I saw first hand the terrible disabilities caused by first cousin marriages.
Of course it should be outlawed, no one would surely disagree.
It was deeply worrying to hear a senior midwife being interviewed about it and not saying it is a problem.
As others have said people don’t want to be seen as racist.

ThisHazelPombear · 26/01/2026 20:38

YuleBeBack · 26/01/2026 20:01

It was very common in England among white British families years ago - especially among the wealthy, to protect inheritances

No, it wasn't very common.

YellowPixie · 26/01/2026 20:39

Not a geneticist.

I would imagine though that two cousins marrying as a one off and having children is not nearly as risk as two cousins marrying from a family where both sets of parents, and grandparents and so on are also all genetically related.

In the UK we don't really have a tradition of marrying our cousins so it's not really ever been an issue. In other communities it is a tradition to ringfence property and money and keep in in the families.

Alltheyellowbirds · 26/01/2026 20:39

JoanOgden · 26/01/2026 20:30

Like other posters have said, the big risk is repeated cousin marriage, not so much a one-off. And it would be hard legally to ban cousin marriage without banning disabled people with genetic conditions generally from having kids, which would start to feel a bit like eugenics.

But bizarre that the NHS said it was OK. There should be a really hard-hitting campaign to educate people in affected areas.

Why would banning cousin marriage prevent disabled people having kids?

UnhappyHobbit · 26/01/2026 20:40

Jamesblonde2 · 26/01/2026 19:48

It’s selfish and ridiculous and they’re as thick as mince.

Another thing that’s a complete waste of tax money/NHS resources which is preventable.

I whole heartedly agree with this. I know a family (White, British) who were cousins. All 4 kids were severely disabled. All had to go into full time care. At the tax payers expense.

Playingvideogames · 26/01/2026 20:40

OrangeSlices998 · 26/01/2026 19:50

My auntie married her first cousin, we’re not south Asian. Just so we don’t descend into racism or racist stereotypes.

FWIW I agree with you my aunt had multiple miscarriages and was told it was likely due to the cousin marriage. They’re not together anymore and he has kids with someone else.

It isn’t racism to point out over half of Pakistani originated people in the UK have married a first cousin.

And therefore it is FAR more likely they will marry a first cousin than a white Brit.

Thappi · 26/01/2026 20:40

Incalescent · 26/01/2026 20:32

And would you say the same to someone with a heritable disability who plans to have a child?

I think people with an inheritable disability should think hard before having children yes. It obviously depends on the disability and how much it affects quality of life. And if you weigh up the pros and cons and if the child’s life is likely to not be affected too badly then they may decide to go ahead. I myself am a carrier of cystic fibrosis. I thought it was likely before I had children as it’s in my family. I was tested and it turned out I was correct and was a carrier. I then got my husband tested. He turned out to be negative. Has he have been positive I would have looked into options of genetic testing embryos before having children. I understand these days cystic fibrosis is not the life sentence it once was, but I have had 3 cousins die of it so I would not want to inflict that on a child if I could help it. My right/want to have children does not override a child’s right to at least the chance of a healthy life in my opinion.

BreadInCaptivity · 26/01/2026 20:41

shuggles · 26/01/2026 20:21

I don't understand what the fuss is about. Charles II of Spain's parents were close relatives and he turned out fine.

Edited

😂 and whilst we are at it maybe we could look at Queen Victoria’s lineage. Nothing to see there either. Certainly the occasional benefit to be found re: international relations and in the pseudo medical sphere (especially if your name was Rasputin - for a time at least 😜) .

superchick · 26/01/2026 20:41

I'm generally quite up to speed on health and social issues but I had no idea this was such a big problem. I don't have a lot of contact with the south Asian community though.

Playingvideogames · 26/01/2026 20:41

YellowPixie · 26/01/2026 20:39

Not a geneticist.

I would imagine though that two cousins marrying as a one off and having children is not nearly as risk as two cousins marrying from a family where both sets of parents, and grandparents and so on are also all genetically related.

In the UK we don't really have a tradition of marrying our cousins so it's not really ever been an issue. In other communities it is a tradition to ringfence property and money and keep in in the families.

I saw this in an article - that the issue isn’t first cousins per se, it’s first cousins where their parents are also first cousins and their parents are first cousins… so the inbreeding embeds deeper through each generation.

Pieceofpurplesky · 26/01/2026 20:42

To be fair I know three people who married their cousins. All white British. One couple chose to not have kids, one have three kids and the other couple two, one who has Down's syndrome.

None of them grew up with or near their future spouse.

canuckup · 26/01/2026 20:42

Yeah Charles 2 was a real combination of genes let's face it

😂

Alltheyellowbirds · 26/01/2026 20:43

Simplelobsterhat · 26/01/2026 20:34

I don't think it's just about not wanting to look racist. It was legal in UK long before most of those immigrant groups people are referring to arrived. My DH has first cousins who are married in his family, and they are white from South England (and not upper class!). So as a county Britain has accepted it in living memory, it's not something that has been imported.

That said I agree it should be banned or educated against now, especially if it is becoming more common again, not only for public health reasons but also i feel like there is more scope for grooming and abuse within a family.

I’m not sure it was really “accepted”, and certainly not within our lifetimes. How did their family and friends react when they got together?

MaybeThisTimeILlbeLucky · 26/01/2026 20:43

@YuleBeBack we only need to look at the royal families of Europe and the famous Hasburg jaw

However they dont do it anymore just like we don't do many things now we have better insights into biology and medicines etc.

I've read it's a part of the coercive control of women ,easier to keep them under control and buried under family upon family etc.

Make the ties of obligation even worse.

Tableforjoan · 26/01/2026 20:43

UnhappyHobbit · 26/01/2026 20:40

I whole heartedly agree with this. I know a family (White, British) who were cousins. All 4 kids were severely disabled. All had to go into full time care. At the tax payers expense.

I really don’t understand why people continue to have more and more children when they are all born with medical issues.

I believe there was a tv show on previously with Muslim girls about their own concern about cousin marriage and defects and how genetic testing should be done.

User0549533 · 26/01/2026 20:45

Playingvideogames · 26/01/2026 20:41

I saw this in an article - that the issue isn’t first cousins per se, it’s first cousins where their parents are also first cousins and their parents are first cousins… so the inbreeding embeds deeper through each generation.

This sounds cruel but surely that's literally evolution in action? It's morally taboo to interfere with people's life and particularly partner choices but if they repeatedly make decisions to have inbred children, then at some point the offspring will simply no longer be able to procreate. The whole point of genetics is that it solves issues like these by itself.

HanG77 · 26/01/2026 20:46

I mean, I used to have a crush on my cousin when I was a teenager, we’re Cornish though so it’s normal down here 🤣 On a serious note though, I knew it was legal here to marry your cousin but I assumed people knew it was weird as f**k to do so and you definitely do not breed!

BadgernTheGarden · 26/01/2026 20:46

One first cousin marriage is probably OK, it's when it happens through the generations that it gets to be really dangerous. But even without the cousin marriages some genetic problems can affect multiple children in a marriage.1st cousins share about 25% DNA, so sharing bad bits of DNA is not all that likely.

It was pretty common in the past partly to keep wealth within the family for the rich, and just who you knew in the less wealthy. The Hapsburg royal family were probably one of the worst.