In which phase of labor do weak uterine contractions typically occur in hypotonic uterine dysfunction?

The correct phase associated with weak uterine contractions seen in hypotonic uterine dysfunction is the active phase. During the active phase of labor, the cervix dilates from 6 cm to 10 cm, and contractions should become more intense, frequent, and effective at helping progress labor. However, in cases of hypotonic uterine dysfunction, these contractions are insufficient in strength to facilitate cervical dilation effectively or encourage the descent of the fetus.

Weak contractions in the active phase can lead to prolonged labor and may necessitate interventions to assist with delivery. Understanding that hypotonic dysfunction typically occurs during this phase highlights the importance of correctly distinguishing it from earlier or later phases of labor, where contraction patterns and cervical changes differ significantly. The latent phase features irregular contractions with more variability, while the transition phase involves strong, regular contractions as the body prepares for delivery; the postpartum phase is concerned with recovery after birth and does not involve labor dynamics.