What is the primary reason for encouraging a laboring client to void at least every two hours?

Encouraging a laboring client to void at least every two hours is primarily important because an over-distended bladder can pose significant risks during labor. As labor progresses, the uterus expands and can exert pressure on the bladder, leading to urinary retention. This retention can create a distended bladder, which not only increases discomfort but can also obstruct the descent of the fetal presenting part. An over-distended bladder may result in trauma or injury to the bladder itself, as well as increase the risk of complications such as urinary incontinence post-delivery.

By promoting regular voiding, the risks associated with over-distension are minimized. This proactive approach helps maintain optimal bladder function, supports the normal progression of labor, and can enhance maternal comfort. It also facilitates the labor process by ensuring that the bladder is not interfering with other aspects of labor or the delivery.