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 HeroOfCanton

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 elle-M

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



  


1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users

 

WIN an exclusive performance from Sam Moran!

To celebrate the release of children?s musical series Play Along with Sam, out now on DVD, we?re giving one lucky parent the chance to have Sam perform at their child?s pre-school or day care!

Toddler freed after getting trapped in escalator

A shopping centre escalator needed to be pulled apart to free a toddler's trapped hand.

Why I'm kind of excited about my daughter's nits

Is it weird to say that I am secretly thrilled to find that my daughter Edie has nits?

Baby born at 10:11 on 12-13-14

Well, it's actually 13-12-14 to us over here. But still, Clare Elizabeth Keane's consecutive numerical birth time is pretty special.

On holding tightly and loving fiercely

We can't live in fear. This post is about Christmas and how at this time we should be celebrating life and grateful for what we have: our loved ones who we cherish fiercely.

Babies, relatives and coping with Christmas day

Everyone will love your baby but your baby may not be so happy to be passed around a lot of new people - nor may you want to feed with an audience.

Why I won't be posting pictures of my baby on Facebook

There are pros and cons to this policy.

The myths and truths of gender swaying

Here are a few popular methods hopeful parents-to-be use to try to get a baby of their preferred gender – and what an expert says about whether they really work.

10 easy DIY Christmas decoration ideas

It's officially time to get into the Christmas spirit. Why not branch out when you put up your tree this year and add a personal touch with a few DIY decorations? We've found the perfect easy-to-make ways to put more festive fever into your home.

The dangerous new trend of glucose challenge test refusal

A dangerous trend is seeing more mothers-to-be declining a relatively simple and painless test to check for gestational diabetes.

Office of Fair Trading reveals naughty toys ahead of Christmas

The Office of Fair Trading has pulled seven toys from shelves ahead of Christmas after they fail safety tests.

Video: Baby boy's trouble with twins

These twin girls will no doubt have fun fooling people in years to come, but nobody will be as confused as baby Landon.

Long-term reversible male contraceptive on its way

Men could soon have access to an injectable long-term contraceptive which works in a similar way to a vasectomy but promises to be easily reversed.

'I tried to kill my baby': one mum's story

After bathing and dressing her three-month-old son, Amanda had a rare moment alone with her baby.

Attack of the 'mummy brain'

I feel that almost every day, someone in my life - be they a friend, family member or complete stranger - feels the need to excuse my behaviour as I have other things on my mind.

Mum of baby who fell ill after drinking raw milk speaks out

A Melbourne mother has described how her son turned grey when he became seriously ill after drinking raw milk.

Australian divorce rate lowest since 1976

Modern newlyweds are now well into their 30s and marriage still offers something powerful a new book argues.

The aftermath of a traumatic birth experience

In Australia, 30 per cent of women find their birth experience traumatic, with 6 per cent going on to develop post traumatic stress disorder (PTSD).

Young mum burns 'from inside-out'

A young mum is in intensive care after she took a friend's antibiotic and wound up with an ailment that is burning her body 'from the inside-out'.

The disagreement that can break a relationship

If he doesn't change his mind, all I can hope is that I will. It would be a waste to spend the rest of my marriage mourning a baby that never was.

Download now: Essential Kids Activity Finder app

Got bored kids? Quickly find the best activities for kids wherever you are in Australia with the Essential Kids app.

 
Advertisement
 
Advertisement
 
 
 

What's hot on EB

Co-sleeping or no-sleeping? Mum videos worst nap ever

One mother's futile attempt to sleep in caught on camera in a hilarious - and very cute - video.

Why children misbehave during the festive season

While we all like to imagine the holiday season as being a fun, loving and bonding experience; often our reality is quiet different.

I was fat-shamed by my doctor

The fear of being weighed is the most significant factor in women cancelling medical appointments - and now weight-shaming has happened to me.

End of an era: no more childcare

As we reach the end of 2014, we're closing the book on many things for another year, most notably childcare. Our last child has attended childcare for the very last time.

WIN an exclusive performance from Sam Moran!

To celebrate the release of children?s musical series Play Along with Sam, out now on DVD, we?re giving one lucky parent the chance to have Sam perform at their child?s pre-school or day care!

The 7-year itch is more like the 10-year itch: study

Contrary to popular belief, making it past the seven-year mark doesn't mean your marriage will be smooth sailing from there on.

Should children be forced to sit on Santa's lap?

We teach kids it’s okay to say no if they don’t feel safe, so why do some parents force their children to climb in to Santa's lap?

Stop telling us that parenting gets harder

I’m sure that parenting will get harder. But life isn’t exactly smooth sailing for many of us right now, either.

Baby born weighing almost 14 pounds

Yes, the bouncing baby girl was born by caesarean section. And mum says no more kids.

The dummy debate

I'm the first to admit that when I used to see tiny babies with dummies in their mouths, I thought "Hmm, lazy parenting." And now I apologise.

'I thought I was an only child'

Imagine meeting your double at a school sports event, or regularly being mistaken for someone you haven't met. Separated twins Margaret and Joy tell their story.

Carers admit to force-feeding children

As Sydney grieves the loss of Sydney siege victims Katrina Dawson and Tori Johnson, reports have suggested that both died as heroes.

 

How many weeks til Christmas?

On your To-Do list

Get the "Santa" shopping done without the kids in tow.

 
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.