Chances of having twins

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Sally
Posts: 33
Joined: Wed Feb 16, 2011 12:23 pm
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by Sally on Tue Jun 09, 2015 12:20 pm

Chances of having twins

Do the chances of having twins increase from the male/female side of the family or both? I was told that it is only the male side of the family that increases the chances of having twins- is this true?

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Dr Helen Webberley
Posts: 96
Joined: Wed Apr 08, 2015 10:31 am
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by Dr Helen Webberley on Wed Jun 10, 2015 8:25 am

Re: Chances of having twins

Hello, twins can happen in one of two ways.

Firstly, the woman can release more than one egg at a time and if both eggs are fertilised that month then those fertilised eggs can go on to become babies (non-identical) at the same time.

The other way is that a single fertilised egg splits in half and each half goes on to divide and make a baby (these babies will be identical twins).

There is no evidence that identical twins are more likely to happen if they have happened before in your family. There is some evidence that if the mother has non identical twins running down her side of the family, then the chances are increased.

So, it's nothing to do with the sperm, it's all about the eggs!!
Dr Helen Webberley
NHS GP and Director of www.MyWebDoctor.co.uk
MBChB MRCGP MFSRH DipGUM DipIPM
http://www.talkhealthpartnership.com/on ... berley.php

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