Baby development indicators at two and a half weeks

Parents are very concerned about their baby's development, and are afraid that they will have any abnormal reactions during the development period. Therefore, there is a strict standard for the development index of babies at two and a half weeks old. Parents can evaluate their babies according to this standard. If the standard is not met, they can improve their development index through diet and exercise in daily life.

The height (length) grows fastest in the first year, with an average monthly increase of 2.5cm from 1-6 months, and an average monthly increase of 1.5cm from 7-12 months. At one year old, the baby is about 25cm taller than at birth, which is 1.5 times the height at birth.

In the second year after birth, the baby's height growth rate begins to slow down, only increasing by 10-12 cm throughout the year.

From the age of 2 until before puberty, the baby's height increases by an average of 6-7cm each year.

2-7 years old baby height calculation formula = age × 5 + 75cm

Tips

When measuring your baby's height (length), take off his shoes, hat and socks.

It is best to measure your height (length) in the morning so that the data obtained will be more accurate.

Small and uncooperative babies can be measured in a lying position. When measuring, make sure your knees are straight and someone has their head fixed with hands.

Boys of the same age have a slight advantage in height (length) over girls. Monoparticles, such as bottle, bath, ball, drink water.

Height (length) refers to the sum of the lengths of the head, torso and lower limbs. The proportions of the three are different in different stages of the baby.

The younger you are, the larger the ratio of your head to your upper body. As you age, your lower body will grow faster than your upper body.

The average length of a baby at birth is about 50cm.

The normal full-term baby weighs about 2.2kg-4.3kg at birth. [1]

In the first 3 months, the baby's weight gain is 0.18kg-0.2kg per week, 0.15kg-0.18kg per week at 4-6 months, 0.09kg-0.12kg per week at 6-9 months, and 0.06kg-0.09kg per week at 9-12 months.

Calculated by weight gain multiples, the baby's weight at 6 months is twice that at birth, about 3 times at 1 year old, about 4 times at 2 years old, and about 4.6 times at 3 years old.

In the second year after birth, the baby's weight increases by an average of 2.5kg-3kg.

After the age of 2, the average annual growth rate is about 2 kg until puberty.