Final answer:
Infants should be tub bathed after the cord falls off, which is generally within 1-4 weeks after birth. Before that time, sponge baths are recommended to keep the umbilical cord stump dry until it detaches naturally.
Step-by-step explanation:
An infant should be tub bathed after the cord falls off. Until the umbilical cord stump dries out and falls off, which usually happens by the time the infant is about 1-4 weeks old, sponge baths are recommended. Once the umbilical stump has detached, it is safe to start bathing your infant in a small tub with a small amount of water.
It is important to ensure that the bathing area is warm and free of drafts, water is comfortably warm but not hot, and that the baby is securely supported during the bath. After the umbilical cord has fallen off, the baby's navel area does not require special care other than keeping it clean and dry.
As the infant grows, they will start to exhibit various developmental milestones, like rolling over, smiling, and following objects with their eyes. It's important to adjust caregiving practices, including bathing, to their growing capabilities and needs.