section_path: Physical characteristics/Weight
section_name: Weight
paragraph_text: Weight
  
  In developed countries, the average birth weight of a full-term newborn is approximately 3.4 kg (7 + 1 ⁄ 2 lb), and is typically in the range of 2.7–4.6 kg (6.0–10.1 lb).
  
  Over the first 5–7 days following birth, the body weight of a term neonate decreases by 3–7%, 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.