Editing Infant (section)

===Weight===
In developed countries, the average [[birth weight]] of a full-term newborn is approximately {{convert|3.4|kg|lb|frac=2|abbr=on}}, and is typically in the range of {{convert|2.7|–|4.6|kg|lb|abbr=on}}.

Over the first 5–7 days following birth, the body weight of a term neonate decreases by 3–7%,<ref name="Mohamed2012">{{EMedicine|article|938854|Neonatology Considerations for the Pediatric Surgeon}}</ref>{{fv|date=November 2024}} and is largely a result of the resorption and urination of the fluid that initially fills the lungs, in addition to a delay of often a few days before [[breastfeeding]] becomes effective. After the first week, healthy term neonates should gain 10–20 grams/kg/day.<ref name="Mohamed2012" />{{fv|date=November 2024}}