How many phases are in the first stage of labor?

The first stage of labor is characterized by three distinct phases: latent, active, and transition. Each phase represents a progression in the labor process, marked by changes in cervical dilation and contractions.

• The latent phase is the initial part, where the cervix begins to efface and dilate up to about 3 centimeters. During this phase, contractions are generally irregular and mild, and the woman may feel excited and somewhat anxious.

• The active phase follows, where there is more rapid dilation of the cervix from about 4 to 7 centimeters. During this phase, contractions become more intense, frequent, and longer in duration, signaling that labor is advancing.

• The transition phase is the final part of the first stage, where the cervix dilates from about 8 centimeters to a full 10 centimeters. This phase is often the most intense and challenging, as contractions are very strong and occur close together.

Understanding this structure helps in managing expectations for labor and providing appropriate support and care for women during the birthing process.