Which stage of birth begins with the first contraction?

The stage of birth that begins with the first contraction is indeed the dilation stage. During this initial phase of labor, the uterus begins to contract, leading to the gradual opening of the cervix to prepare for the arrival of the baby. This process is essential as it allows for the widening of the birth canal, facilitating the passage of the baby during delivery.

As contractions become more frequent and intense, they help to soften and thin the cervix, which is a critical component of the early labor phase. The dilation stage is characterized not only by the onset of contractions but also by the gradual increase in the level of discomfort experienced by the mother as labor progresses. Understanding this phase is crucial for anyone involved in childbirth, including professionals in the field of correctional or probationary services dealing with cases of pregnant individuals in their care.