Labor Stages

Labor is divided into four distinct stages, each with its unique characteristics and nursing considerations:

First Stage:

• Begins with the onset of regular uterine contractions that cause progressive cervical change.

• Ends when the cervix is fully dilated to 10 cm.

• This is usually the longest stage: averages 12 hours for first-time birthing persons (primigravidas) and 8 hours for those who have given birth before (multigravidas), but duration varies greatly.

• The first stage is divided into two phases:

  • Latent Phase: Cervix dilates from 0 to 6 cm. Contractions are mild and spaced further apart; the patient may still talk through them.

  • Active Phase: Cervix dilates from 6 to 10 cm and effaces from 50–100%. Contractions become stronger, longer, and closer together. The patient often becomes more focused, intense, and may use coping techniques.

Second Stage:

• Starts when the cervix is fully dilated (10 cm).

• Ends with the delivery of the infant.

• Contractions are strong and long (60–90 seconds), and the patient pushes, guided or spontaneously, based on provider recommendation and personal preference. The stage may last as little as 20 minutes or up to several hours, especially for first births.

Third Stage:

• Begins after the birth of the infant.

• Ends with the delivery of the placenta (usually in 5–30 minutes).

• The uterus continues contracting to detach and expel the placenta and clamp down vessels to prevent hemorrhage.

Fourth Stage:

• Begins after the placenta is delivered.

• Ends after approximately 4 hours or when the patient is clinically stable.

• Focuses on maternal recovery, monitoring for bleeding, uterine tone (to prevent postpartum hemorrhage), and repair of any birth injuries.