Clinically the full term of a child is also called the neonatal period, which refers to the period from the ligation of the umbilical cord to 28 days after birth, and in daily life the full term refers to 30 days. The normal weight of a child at birth is 2.5-4 kg, which increases by about 0.8-1 kg a month; the average height at birth is 50 cm, which increases by 3-5 cm at full term; the average head circumference at birth is 34 cm, which increases by 2-3 cm at full term, whether the head circumference is normal reflects whether the brain development is normal. The normal body temperature of newborns is between 36°C-37.2°C, with a pulse of 120-140 beats/min. Before the child reaches full term, neonatal jaundice, neonatal pneumonia and sepsis are likely to occur, so parents need to pay more attention to the child’s condition, and pay attention to reasonable care, monitoring temperature changes, scientific feeding, etc. Breastfeeding is better during the newborn period because it contains immune factors that can strengthen the child’s resistance. Generally, breast milk is given every 2-3 hours or so and fed on demand.