After the birth of a baby, the most popular questions asked by new friends and relatives are: What is the birth weight? How many milliliters of milk do you drink at a time? A few months later, people continue to be concerned about the baby’s weight and milk intake. It is customary for people to arbitrarily determine whether a mother can raise a child from these numbers and their own experience. From now on, the child growth curve to assess the baby’s growth, this is the “professional”! 1.Height As the bones develop, the height also changes. Generally speaking, 95% of full-term newborns are between 45 and 55 cm tall. Before the age of 2, the baby’s length is measured lying down with a ruler or using a more accurate height measuring board; after the age of 2, the height is measured standing up. Height, so the growth curve at the age of 2 years will have a difference. 2.Weight The baby’s weight reflects the nutritional status, which is also one of the easiest indicators to determine the health status. 95% of full-term newborns weigh between 2.5 and 4.0 kg, and the average weight of male babies is heavier than that of female babies. Usually the baby’s weight at full term is 1 kg more than at birth, twice as much as at birth at 4 months of age, 3 times as much as at birth at 1 year of age, and about 12 kg at 2 years of age, after which it increases by about 2 to 3 kg per year. 3, head circumference Full-term newborns head circumference of about 33 to 35 cm, before 2 years old, the baby’s brain nerves are still developing, but the fastest growth rate in the first year, the brain volume at age 3 has reached human size. If the growth rate of head circumference is too fast or too slow, there may be structural abnormalities. If the head circumference is greater than the 97th percentile or less than the 3rd percentile, there may be abnormalities, that is, you should actively seek medical examination. 4.Continuous and regular measurement The growth curve is continuous and it is impossible to just look at the drop point measured at a certain time, you must observe it for a period of time and then connect the drop points measured at different times to see if the growth curve is followed. Usually, before babies are 6 months old, they have the opportunity to measure their weight, height and head circumference almost every month or two because of the time of vaccination (full-term, 2-month, 4-month, 6-month), and after that, they can have another health checkup when they are 9 months old to track their growth and development. If you have the opportunity to go to the doctor, you can ask the health care provider to help you measure your baby’s growth. If the curve deviates from more than two curves (above or below two curves) within a short period of time, you must ask your doctor for an evaluation. Once it is determined that the growth is too fast or slow, the cause must be identified to find ways to improve the situation. 5.Babies grow at their own pace Although 3% to 10% of babies are considered thin, they eat well, sleep well, have good vitality and develop normally, and these figures are for reference only, so parents need not worry too much. Baby is fat or thin, sometimes with personal value judgments, baby growth status in addition to congenital genetic related, but also with the acquired nutrition, environment and health factors, should not ignore the baby has its own pace of growth, as long as the baby’s height and weight, stable according to their own curve range growth, mental and mobility is good, normal development, parents do not need to worry excessively, of course, do not need to compare this with others! In addition to growth, the size of the baby’s muscles and related mental development in the 5-month-old to 1-year-old stage of development changes greatly, parents also need to give moderate attention to take into account the physical and mental development of the baby.