How does the risk of uterine rupture change based on the timing of a previous cesarean delivery?

The risk of uterine rupture is slightly higher if the previous cesarean was performed within 24 months of the current birth.

The timing of a previous cesarean delivery affects the risk of uterine rupture during a trial of labor after cesarean (TOLAC). Specifically, if the prior cesarean was performed within 24 months of the current birth, the risk of uterine rupture is slightly increased. This suggests that a shorter interval between cesarean deliveries may contribute to a higher risk of uterine rupture during subsequent labor.