Parenting

pg related - what the heck does this mean?

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.

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

  • 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
  • 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
  • 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
  • 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!

  • THANK YOU!  It sounds so simple put that way.
  • Duh!  Sorry, I see that you only wanted the "station" part answered!!! 

    I wasn't reading close enough!

  • 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!

  • 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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