the second phase of the first stage of labor. Active labor begins when the cervix is 3-4 centimeters dilated. During active labor, the contractions are stronger and occur more often than during the early phase (latent phase) of stage one. Toward the end of this phase, the cervix dilates from 7-10 centimeters.
The normal progress of the birth process, including tightening of the uterus, cervical dilation, and descent of the fetus into the birth canal.
Thinning and opening of the cervix, usually between 4–10 centimeters, with contractions typically 2–5 minutes apart
The part of the first stage of labor during which the cervix dilates from 4 centimeters to 10 centimeters, contractions become stronger, and pressure and discomfort build.
The period of time when your cervix dilates between four and eight centimeters. Contractions usually come between three and five minutes apart, dilating the cervix approximately one centimeter (one "finger") per hour.
Part of the first stage of labor when the cervix dilates from three to seven centimeters. Active labor lasts an average of two to four hours. The contractions during active labor are strong, long (40 to 60 seconds each), and frequent (three to four minutes apart).
