Infant weight standard table

Details of the baby's height and weight standard are as follows: 1. Weight: The normal weight of newborn is 2.5 ~ 4.0 kg. In the first three months of life, the baby's weight grows the fastest, about 750 ~ 900 g per month; In the first six months, the average monthly increase was about 600g; 7 ~ 12 months, the average monthly weight gain is 500g, and the weight at 1 year is about three times that at birth. The weight of a healthy baby should not exceed 65,438+00% of the normal weight, and more than 20% is obese, which is lower than the average index of 65,438+05%. To consider malnutrition or other reasons, you need to go to the hospital as soon as possible. 2. Body length: The average body length of a baby is 3-3.5 cm in the first three months, 2cm in the fourth to sixth months, and1~1.5 cm ..1year, which increases by about half. Children grow fastest at 1 year. If they are not properly fed and their growth is delayed, it will be difficult for them to catch up with their peers. 3. Head circumference: 1 year is the fastest period of skull development in life. The method of measuring the head circumference is to use a plastic soft ruler to circle around the forehead and eyebrows behind the head. The head circumference of children increased by 6 ~ 10 cm in the first 6 months, and increased by 1 0 ~12 cm when1year old. The growth of head circumference marks the development of brain and skull.