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The first stage of active
labor starts when the cervix is about
3 cm (1 in.) to
4 cm (2 in.) dilated. This
stage is complete when the cervix is fully
dilated and effaced and the baby is ready to be pushed
out. See a picture of
cervical effacement
. During the last part of this stage (transition), labor
becomes particularly intense.
Compared with early labor, the contractions during the first stage of active labor are more intense and more frequent (every 2 to 3 minutes) and longer-lasting (50 to 70 seconds). Now is the time to be at or go to the hospital or birthing center. If your amniotic sac hasn't broken before this, it may now.
As your contractions intensify, you may:
The end of the first stage of active labor is called the transition phase. As the baby moves down, your contractions become more intense and longer and come even closer together than before. When you reach transition, your delivery is not far off. During transition, you will be self-absorbed, concentrating on what your body is doing. You may be annoyed or distracted by others' attempts to help you but still feel you need them nearby as a support. You may feel increasingly anxious, nauseated, exhausted, irritable, or frightened.
A mother in first-time labor will take up to 3 hours in transition, and a mother who has vaginally delivered before will usually take no more than an hour. Some women have a very short, if intense, transition phase.
| By: | Healthwise Staff | Last Revised: January 7, 2010 |
| Medical Review: | Kathleen Romito, MD - Family Medicine Sarah Marshall, MD - Family Medicine Kirtly Jones, MD - Obstetrics and Gynecology | |
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