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The umbilical cord of a newborn is bluish-white in color. After birth, the umbilical cord is normally cut, leaving a 1–2 inch stub. The umbilical stub will dry out, shrivel, darken, and spontaneously fall off within about 3 weeks. Occasionally, hospitals may apply triple dye to the umbilical stub to prevent infection, which may temporarily color the stub and surrounding skin purple.

Babies cannot walk, although more mature infants may crawl or scoot; baby transport may be by [[perambulator (stroller or buggy), on the back or in front of an adult in a special carrier, cloth or cradle board, or simply by being carried in the arms. Most industrialized countries have laws requiring infants to be placed in special child safety seats when in motor vehicles.