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pg related - what the heck does this mean?

joseysbridejoseysbride member
in Parenting

Forgive me for the dumb question.  I've been through this before, I've googled, and I'm still lost.

When someone says they're 1 cm dilated, 50% effaced, and -3 station...what does -3 station mean?

I have actually never heard that term until reading on the tri boards.

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Re: pg related - what the heck does this mean?

  • j-wj-w
    It's where the baby's head is.  So negative numbers are above the pelvis.  Zero is engaged in the pelvis and positive numbers are on the way out.
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  • ppantsppants member
    We they baby's head is in relation to the pelvis.  -3 means it's above the pelvis and not engaged yet. 
    Wendy Twins 1/27/06. DS and DD
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  • ppantsppants member
    It's regarding where the baby's head is in relation to the pelvis.  -3 means it's above the pelvis and not engaged yet. 
    Wendy Twins 1/27/06. DS and DD
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  • jessicaclarejessicaclare member
    I think -3 station is that the baby's head is 3 cm above what they call the midpoint in the pelvis. 0 is the midpoint, +3 means the baby is ready to deliver.
    image
    Annelise 3.22.2007 Norah 10.24.2009 Amelia 8.7.2011
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  • jnicks19jnicks19

    Dilation--the cm open that the cervix is open.  Goes to 10cm when baby is ready to come out

    Effacement--The thickness of the cervix.  Normally the cervix is thick and long.  In order to be 10cm, the cervix thins out as it opens.  They do it in %'s.  Obviously 100% effaced means completely thinned out and ready to go (as long as your are 10cm)

    Station--is the position of the baby's head.  goes from -5 to +5, although, you'll typically only hear -3 to a +3.  The negative numbers mean baby's head is still way up in the pelvis.  0 station means the head is engaged mid pelvis and the the number gets progressively higher as the head comes out.

     

     

    Hope this helps!

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  • joseysbridejoseysbride member
    THANK YOU!  It sounds so simple put that way.
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  • jnicks19jnicks19

    Duh!  Sorry, I see that you only wanted the "station" part answered!!! 

    I wasn't reading close enough!

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  • amiamishamiamish
    imagejnicks19:

    Dilation--the cm open that the cervix is open.  Goes to 10cm when baby is ready to come out

    Effacement--The thickness of the cervix.  Normally the cervix is thick and long.  In order to be 10cm, the cervix thins out as it opens.  They do it in %'s.  Obviously 100% effaced means completely thinned out and ready to go (as long as your are 10cm)

    Station--is the position of the baby's head.  goes from -5 to +5, although, you'll typically only hear -3 to a +3.  The negative numbers mean baby's head is still way up in the pelvis.  0 station means the head is engaged mid pelvis and the the number gets progressively higher as the head comes out.


     

    Hope this helps!

    WOW- that's a great explanation on a lot of things!

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  • joseysbridejoseysbride member
    imagejnicks19:

    Duh!  Sorry, I see that you only wanted the "station" part answered!!! 

    I wasn't reading close enough!

    No worries.  When the time comes, all I'll really need to know is what the goal is to get the baby out! Smile

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