What is the developmental standard for a newborn baby at four months?

After the baby is born, as the baby's age increases, the body is also slowly developing and growing. The growth and development of babies at different stages are also different, and the growth and development standards of babies every month are also different, but they are all developing towards a better level. The body and abilities of babies at four months old are constantly changing during this period. What are the development standards for newborns at four months?

1. Indicators of physical activity

With mom and dad supporting the baby's hip joints, the baby can sit up by himself and try to turn over by himself. The baby can lift his whole body with his hands and can sit for about ten to fifteen minutes. The baby can lift his head and straighten his back. The baby can also stretch his neck and reach his feet with his hands and try to bend over by himself. The baby can lie on his stomach and roll over to lie on his side.

2. Language proficiency indicators

A four-month-old baby can detect his own sound-making organs. He likes to try to have conversations with mom and dad, talk to himself, entertain himself, and learn to babble. At this time, the baby can shout, laugh loudly, make crying sounds, and try to imitate the tone of adults.

3. Tactile indicators

The brain nerve development of a four-month-old baby is gradually improving. At this time, the baby's conditioned reflex will gradually disappear, and the baby will actively reach out to grab the things and toys that interest him. At this time, mom and dad can play with the baby more, use some toys to amuse the baby, and he can actively reach out and grab them.

What is a reasonable weight for a four-month-old baby?

1. Many new mothers want to raise their babies to be plump and white, and regard this as a criterion for raising babies. In fact, it is not necessarily a good thing for a baby to be too fat, because the baby's obesity in infancy will lead to a very high probability of being too obese in adulthood.

2. Under normal circumstances, the baby's development level has a scientific basis. If the baby's weight is 20% higher than that of babies of the same age, gender and height, then he is considered to be too fat. If it is less than 20%, then he is considered to be too thin.

3. The healthy development of the baby, including physical health and normal weight. In fact, the baby's weight data can be calculated according to a formula: the baby's weight from one month to six months = the baby's weight at birth + month × 0.7.