What is the critical reason for delaying the first bath for a newborn?

Delaying the first bath for a newborn is primarily important for stabilizing the newborn's temperature. When a newborn is born, they are not yet able to effectively regulate their body temperature. The vernix caseosa, a protective waxy coating present on the skin of newborns, helps to maintain warmth and prevent heat loss. Bathing immediately can remove this protective layer, increasing the risk of hypothermia. By postponing the bath, healthcare providers can ensure that the newborn retains heat, stabilizing their body temperature and promoting their overall well-being.

While enhancing bonding with parents, performing a full physical assessment, and starting breastfeeding sooner are all significant aspects of newborn care, they do not directly address the immediate physiological needs related to temperature regulation, which is critical in the first hours of life.