Blood type and speed of birth

[Khaleesi]

I'm A+
DD1 was 17 hours
DD2 was 2 hours.

[Traveller]

thanks everyone Obviously this is a completely non scientific theory but from the anecdotal evidence it seems like blood type has no correlation with length of labour

[*LittleMissSummer*]

I'm A+ and i had a spontaneous labour at 38 weeks exactly i had a 23.5 hr labour established labour was 10.5 hrs and she was born posterior.

[lozzy_mac]

Lets look at this scientifically (sorry, its how I roll!) [ETA- Trillian you posted your conclusion while I was writing this haha]
The only explanation I can think of would involve an immune reaction of the mother to the baby's blood antigens (can any other bio majors think of another explanation?- I dont buy genetic linkage, labour is way too multifactorial)
I could imagine a scenario where a mismatch in antigens would cause the mothers body to decide to get baby out of there quicker, so maybe if the mother was A and the baby was B or AB.
But then the same should happen if the mother was B and the baby was A or AB, and you'd expect it to be more common with O type mothers.

Or maybe the difference in the glycosylation of the ABO protein actually DOES affect its function- but only during labour (I bet no one has looked at that!) and differences in maternal oxygen transport affect the speed of labour??

Conclusion- I doubt it's true, but hey, its possible!.... continue....

[Traveller]

Lets look at this scientifically (sorry, its how I roll!) [ETA- Trillian you posted your conclusion while I was writing this haha]
The only explanation I can think of would involve an immune reaction of the mother to the baby's blood antigens (can any other bio majors think of another explanation?- I dont buy genetic linkage, labour is way too multifactorial)
I could imagine a scenario where a mismatch in antigens would cause the mothers body to decide to get baby out of there quicker, so maybe if the mother was A and the baby was B or AB.
But then the same should happen if the mother was B and the baby was A or AB, and you'd expect it to be more common with O type mothers.

Or maybe the difference in the glycosylation of the ABO protein actually DOES affect its function- but only during labour (I bet no one has looked at that!) and differences in maternal oxygen transport affect the speed of labour??

Conclusion- I doubt it's true, but hey, its possible!.... continue....

I didn't understand anything apart from your first sentence It was the only reason I could think of why it might be true. Other theories behind fast labours I have heard are high BP = fast labour, and health problems (particularly cardiac issues) = fast labour. Both of these make sense to me as there is a medical reason why the body might not cope with a long labour, but the blood type one just left me confused.

[black_rose]

No problems with blood pressure, had gestational diabetes and spd with dd2 but that's it, was healthy with the other two. I go into labour around 34 weeks too so figure that one out!!

[Freya]

Im 0+ and all my labours were under 3 hours.

[lozzy_mac]

Yeah I'm sure there are lots of factors that influence labour speed. Ever since the "blood type diet" I've been skeptical of anything regarding bloodtype and since I am in immunology I see it as my job to educate (or just further confuse!) haha sorry
Where had you heard it trillian?

Of course though, rhesus factor (whether you're + or -) is super important in pregnancy!

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[~Hestia~]

Hmmm...

I'm A+. Moo was my first labour. Regular contractions started at 7pm, 5am I went to the hospital where internal showed I was 8 cms, 10am my waters broke & he was finally born at 5pm! So all up 22 hours with 2 hours of pushing thrown in

[Mum2Romone]

I'm A+ and my posterior labour started at 2pm Thursday....October 30th Spontaneous Labour
I gave birth after 12 hours 20 minutes of established labour
And twenty minutes pushing
Vaginal birth
on Sunday 2nd November..... Long posterior labour

[*Beema*]

A+ here,
DD1 was a very quick labour, waters broke, 45 min for the first ctx, they were 5 min appart, internal done approx 50min later and 7-8cm, she was born 40min after internal BP was rising, a week and a half prior to is was 135/80 a sharp increase from previous weeks

DD2 ended in CS, after 8 weeks of trying to stop labour BP was rising rapidly, even on 140mg of Nifedipine, and one of the side effects is to lower BP....

ETA DD1 was a posterior labour as well

[Jaycee]

Interesting thread!

I am A+ and my first labour was 2 hours and 5 minutes, so definitely true for me!

I'll let you know in 10 or so weeks how long this one is

[~clover~]

Nope

I'm A+
From first sign of labour, 18.5 hours, 30 hours, 5 hours, 12 hours.
Active labour, 12 hours, 9 hours, 5 hours (very hard & fast!), 5 hours.

My last 3 were posterior during labour, which explains the long prelabour with DD2 & DD3.

ETA - none induced & DD3 born posterior

[Laranna]

I am A+. With DS, he was a scheduled c/s (placenta praevia) but I went into labour early with him with my waters breaking and contractions starting immediately after. When I got to hospital my contractions were 5 min apart and the midwives gave me something to stop the contractions until the ob got there. Ob commented it would have been a quick labour if I could have had one.

With DD, regular contractions started about 8:30, went to hospital at 11:30, had VE and found to be 7cm. DD was born at 1:31am so about 5 hours. Ob reckons the next one will be even quicker.

My sister is A+ and her first was 5 hours and her second was 3 hours.

[Boo Boo]

A+

DD was 2 hrs 15 mins then DS was 1 hrs 15 mins - not sure what this one will be or where - maybe the laundry floor .

[*star*]

Sounds like a crock to me!

Your blood type doesn't change from birth to birth, but each birth is different and varies enormously.

Take me, I'm A+. First labour 24 hours, resulting in C section. Second labour 3 hours, from waters breaking to holding my little one.

[~Raven~]

Not true in my case! I'm B+ and my first labour was 9 hours from show (4hrs officially), 2nd was 2, 3rd about 3 and 4th 1hr 50mins.

[Trillian]

Interesting theory! I'm A+ and mine were 12, 8, 4.5 (induced) and 6. They are not what I would call terribly quick births though.

This is all I said? I'm certainly no scientific genius LOL.