Jump to content

Sex won't bring on labour
New Study


17 replies to this topic

#1 Guest_AllegraM_*

Posted 23 November 2012 - 06:43 AM

Spoilsport scientists!

http://www.abc.net.au/science/articles/201.../22/3638581.htm


"There is a widespread belief that sex during the later stages of pregnancy can jumpstart labour, but that doesn't appear to be so - at least according to a study from Malaysia.

The researchers, whose work appeared in BJOG: An International Journal of Obstetrics and Gynaecology, found that there were no differences in the timing of delivery between women who had sex near term and those who abstained.

"We are a little disappointed," says Tan Peng Chiong, an obstetrics and gynecology professor at the University of Malaya and one of the authors of the study.

"It would have been nice for couples to have something safe, effective and perhaps even fun that they could use themselves to help go into labour a little earlier if (they) wanted."

Tan says that many women believe intercourse can induce labour, and scientists have proposed plausible biological explanations for why it might help.

For one, semen contains a hormone-like substance called prostaglandin, which is used in synthetic form to induce labour. Breast stimulation is also thought to hasten labour and orgasm can trigger uterine contractions.

"Labour induction for prolonged pregnancy is common and many women are also tempted for a variety of personal reasons to trigger labour in the very later stages of pregnancy," says Tan.

Randomised trial

The researchers invited more than 1100 women to participate, all of whom were 35 to 38 weeks pregnant and none of whom had had sex in the previous six weeks.

Roughly half of the women were advised by a physician to have sex frequently as a means of safely expediting labour. The other half were told that sex was safe during pregnancy, but that its effects on labour were unknown.

The researchers then tracked the women to determine how long their pregnancies lasted and whether they required any medical intervention to start labour.

They found that about 85 per cent of the women who were encouraged to have sex did follow the doctor's advice, while 80 per cent of women in the other group also had sex.

Women in the group advised to have sex also had it more frequently for the remaining duration of their pregnancies - three times versus two.

But the rates of induced labour were similar in both groups: 22 per cent of those advised to have sex and 20.8 per cent of the other group, a difference so small it is likely to have been driven by chance.

Pregnancy 'robust to the end'

Earlier research relied primarily on surveys of women about their sexual experiences during pregnancy, but this study was "the first attempt to really randomise the experience, for some to have sex and some to not, which is a very hard thing to do," says Dr Jonathan Schaffir, an associate professor of obstetrics and gynaecology at the Ohio State University College of Medicine.

"Even though this study did not show any increase in the rate of labour or a decrease in the rate of induction, it helped to cement the idea that having sex is probably safe if you want it," he says.

Tan says the results show that pregnancy evolved to be resistant to disruption.

"Human pregnancy has to be robust to a little adventure like intercourse and unfortunately for our purpose, it seems pretty robust to the very end," he says."

Edited by AllegraM, 23 November 2012 - 06:45 AM.


#2 CherrySunday

Posted 23 November 2012 - 06:51 AM

Hmm, study says no, but that doesn't mean people can't keep trying Tounge1.gif

#3 girltribe4

Posted 23 November 2012 - 07:00 AM

I wasn't trying to bring labour on as I was only 37wks but DD#2 's birth started a few hours after we DTD ph34r.gif , She was my only early baby .

#4 diegov

Posted 23 November 2012 - 07:05 AM

Not a very well controlled study when both groups having sex.... Lol
It's the prostaglandin in semen that induce labour. More to the point, prostaglandins ripen the cervix for labour.


#5 InsertAwesomeHere

Posted 23 November 2012 - 07:50 AM

QUOTE (diegov @ 23/11/2012, 08:05 AM) <{POST_SNAPBACK}>
Not a very well controlled study when both groups having sex.... Lol
It's the prostaglandin in semen that induce labour. More to the point, prostaglandins ripen the cervix for labour.

I knew this already but just curious. If you are already dilating slowly (due to previous pregnancies) and slightly thinned out is it really going to make a difference?

#6 Bluenomi

Posted 23 November 2012 - 09:12 AM

Thank goodness! The last thing I wanted to do at 40 weeks was the deed.

#7 maneki_neko

Posted 23 November 2012 - 12:51 PM

May as well make the most of it though, chances are you won't be up to it for at least a few weeks afterwards!

#8 Soontobegran

Posted 23 November 2012 - 12:58 PM

Hmm?
Not sure about the trial but having sex will not bring on labour unless you are 'ready' anyway but I most definitely think that depositing a heap of prostaglandins onto the cervix does get things going in many women.
The number of women who have come in post sex in labour would make it seem to be a bit of a coincidence if it does nothing......no harm in trying original.gif

#9 CallMeFeral

Posted 23 November 2012 - 01:38 PM

A bit odd that it was the 'rates of induced labour' they used as their measure of success?

I mean I get that it would be faults in any measure, but wouldn't average gestation at occurrence of natural labour be the better measure?
I'd have thought that the women who had to be induced were probably not going to go into labour by any subtle or natural means anyway - it'd be the ones who were on the brink of natural labour that would go earlier due to the prostoglandins...

What their experiment is effectively measuring is "Is sex as effective an inducer of labour as syntocin?" which is a much bigger claim...
Assuming the reporting of the study is correct.

ETA. HangonWHUT? Did I read it correctly? Both groups had sex at roughly the same rate anyway (80-85%).... but they still figured it was valid to compare both groups induction rates and draw a conclusion? Um.... scientific method FAIL! laughing2.gif

Edited by CallMeAliG, 23 November 2012 - 01:42 PM.


#10 diegov

Posted 23 November 2012 - 01:46 PM

QUOTE (InsertAwesomeHere @ 23/11/2012, 07:50 AM) <{POST_SNAPBACK}>
I knew this already but just curious. If you are already dilating slowly (due to previous pregnancies) and slightly thinned out is it really going to make a difference?


Yes will make a difference! Helps dilation speed up/ happen easier

#11 Maserati Mum

Posted 24 November 2012 - 04:29 PM

My DH will not be happy to hear this biggrin.gif

#12 dreamingofcats

Posted 24 November 2012 - 04:34 PM

I was under the impression it will only work if your cervix is already softening anyway, so as a stand alone thing its not really effective.

I do however have a new appreciation when I have heard women say they will try just about anything to bring on labour in the last few weeks, Im 37 weeks tomorrow and so very hot and tired and crankey!!

#13 my serenity

Posted 24 November 2012 - 07:56 PM

Yep we had regular sex through pregnancy and I've gone into labour within half Hour to 24 hours if due date every time

Yep we had regular sex through pregnancy and I've gone into labour within half Hour to 24 hours if due date every time

#14 Lauren Bell

Posted 24 November 2012 - 08:05 PM

Putting the evidence aside, I've always thought the idea of having sex to bring on labor is ridic. Same goes for any other method you decide to use (castor oil??). Desperate ideas but I strongly believe baby will come when it's ready!! And if you've drank castor oil and 6 hours later your in labour, I think it's more of a coincidence then "omg castor oil worked"

#15 monkeys mum

Posted 24 November 2012 - 09:33 PM

The study doesn't really sound that reliable to me.

Surely something natural would work better then a synthetic form.



#16 Soontobegran

Posted 24 November 2012 - 09:40 PM

QUOTE (QueenB.PrincessC @ 24/11/2012, 09:05 PM) <{POST_SNAPBACK}>
Putting the evidence aside, I've always thought the idea of having sex to bring on labor is ridic. Same goes for any other method you decide to use (castor oil??). Desperate ideas but I strongly believe baby will come when it's ready!! And if you've drank castor oil and 6 hours later your in labour, I think it's more of a coincidence then "omg castor oil worked"



Castor Oil used to be one of the only ways to induce labour half a century ago and it did work on women who were already 'ripe'. The stimulation of the bowel caused by the castor oil can then in turn kick start the contractions of the uterus.

I would have to say that from my observations and from what I've been told is that semen definitely can hurry things along in a women who has a cervix that is effacing. original.gif

#17 katniss

Posted 24 November 2012 - 09:43 PM

We had sex the night before I went into labour....but who knows

#18 erindiv

Posted 04 December 2012 - 08:57 PM

DTD brought on labour with my DD on her due date.

That study seems a bit weird, or maybe I'm not reading it right. It sounds like they had similar rates of labour in the women who had sex as... the other women that had sex?

Huh?



Reply to this topic



  


0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users

 

Chrissy Teigen's pride about daughter's adorable first word

Chrissy Teigen and John Legend have celebrated their 11-month-old baby Luna's first word with an adorable Instagram post.

The photo that sums up how dads REALLY feel during labour

A new mum shared a hilarious photo of her partner during labour that lots of dads will relate to.

You can never hold your baby too much, says study

From the world of super obvious science comes the news that you can never hold your baby too much.

Babies called Romeo and Juliet born hours apart in the same hospital

Two mums gave birth in adjoining hospital rooms a few hours apart. They had never met, and had each chosen their baby's name earlier in the pregnancy.

Mum organises 'nurse-in' protest at IKEA

It's hard to believe than in 2017 mums are still receiving flak for breastfeeding in public, but that's what one US mum claims happened in IKEA.

Will 'How Not to Hate Your Husband After Kids' be a best-seller?

Author Jancee Dunn hopes her new book will help mums deal with the stresses that parenthood can place on an otherwise happy relationship.

The dad who was taunted for taking paternity leave

They imagined that while I was away, I would be glued to the couch, beer in hand. In no way would I actually be helping my wife.

Photographer surprises couple with rainbow baby shoot

The prettiest and most unexpected maternity shoot for a much-wanted rainbow baby.

Mum's funny solution for finding 'me time' with a toddler in tow

If you've ever been in possession of a toddler, you'll know that it's next to impossible to get anything done.

Qualities my three-year-old has that I admire

My three-year-old daughter is one of the strongest little women that I know. As I watch her grow into this amazing person, I can't help but feel accomplished and proud.

'You need to be present': John Legend on supporting a partner with PND

Singer John Legend has opened up about supporting wife Chrissy Teigen through postnatal depression.

The seven types of 'parent sleep'

The question, "Did you sleep well last night?" should be easy to answer. Either a yes (if you're lucky), or a no.

'Anxiety hit me like a ton of bricks'

Tammin Sursok has written an essay sharing her personal experience with postnatal anxiety.

11 things to do to protect your mental health while breastfeeding

Whether breastfeeding is going well or you are finding it harder than you expected, taking care of you needs to be a priority.

Couple announces they're both expecting - three weeks apart

Being pregnant at the same time as your best friend means double the excitement.

Why Dax Shepard was 'impressed' when his daughter swore for the first time

Actor and comedian, Dax Shepard has given a hilarious recap of the lengths he'll go to get, and keep, his kids asleep.

Video captures beautiful breech caesarean birth

A new life is brought gently into the world with tender and expert hands.

Mum warns of vacuum danger after toddler injured

Every parent knows toddlers can move fast, now one mum is warning about the dangers of allowing small children anywhere near vacuum cleaners.

 
Advertisement
 

Top 5 Articles

Advertisement
 
 
 

From our network

Win 1 of 10 awesome Peppa Pig prize packs

Who loves Peppa? We have 10 packs to give away - including family passes to see the brand new movie, in cinemas March 16!

Essential Baby & Toddler Show, presented by Blackmores

28th - 30th April, 2017, Melbourne Royal Exhibition Building, Carlton. Get your FREE ticket now. Save $20.

 

Free ticket offer

Essential Baby & Toddler Show, presented by Blackmores

28th - 30th April, 2017, Melbourne Royal Exhibition Building, Carlton. Get your FREE ticket now. Save $20.

 
Advertisement
 
 
Essential Baby and Essential Kids is the place to find parenting information and parenting support relating to conception, pregnancy, birth, babies, toddlers, kids, maternity, family budgeting, family travel, nutrition and wellbeing, family entertainment, kids entertainment, tips for the family home, child-friendly recipes and parenting. Try our pregnancy due date calculator to determine your due date, or our ovulation calculator to predict ovulation and your fertile period. Our pregnancy week by week guide shows your baby's stages of development. Access our very active mum's discussion groups in the Essential Baby forums or the Essential Kids forums to talk to mums about conception, pregnancy, birth, babies, toddlers, kids and parenting lifestyle. Essential Baby also offers a baby names database of more than 22,000 baby names, popular baby names, boys' names, girls' names and baby names advice in our baby names forum. Essential Kids features a range of free printable worksheets for kids from preschool years through to primary school years. For the latest baby clothes, maternity clothes, maternity accessories, toddler products, kids toys and kids clothing, breastfeeding and other parenting resources, check out Essential Baby and Essential Kids.