What occurs with the interval between contractions during true labor?

During true labor, the interval between contractions changes as labor progresses. Specifically, it becomes progressively shorter. This is a hallmark of true labor, indicating that the uterus is contracting more effectively and efficiently to facilitate the dilation of the cervix in preparation for birth.

As labor advances, contractions in true labor typically increase in frequency, intensity, and duration. This pattern leads to contractions occurring closer together over time, which is a key distinction from Braxton Hicks contractions, where the intervals do not show such a predictable pattern.

Understanding this aspect of labor can aid in differentiating true labor from false labor and in managing patient expectations about the labor process.