After the baby is born, after the careful care of the mother and father, every day is growing a little bit, and then gradually learn to talk and walk, which is also the most happy thing for parents, every day to see the child little by little growth and change, for parents is perhaps the happiest thing, for the baby, every day is different, there are some slight changes, are changing, so for four months of the baby The developmental indicators are those? Baby 4 months development law The first few months after birth, baby’s brain growth rate is slightly faster than the growth rate of the skull, so at this stage, baby’s fontanel can be slightly larger with the increase in head circumference, but generally not greater than 3.0 cm, not less than 1.0 cm, and not outwardly protruding, baby also no sweating, night terrors, irritability and other performance. Visual Hand-eye coordination is enhanced 4 months of age, the baby no longer stays in the state of staring at the bedbell hanging in the crib, he began to be able to mobilize the small hands, consciously make reaching movements. Don’t underestimate the development of this ability, which means that the baby’s optic nerve development is further improved, not only to see things, but also to see things to make a conscious response, applaud your baby. At this time, parents need to make exaggerated praise response to the baby’s reaching action, the baby will be greatly encouraged, more conducive to his intellectual development Oh. Hearing Your baby can recognize different tones and distinguish between male and female voices Your baby can now recognize different tones and distinguish between male and female voices. Mothers can make this interesting vow: first play a song with a female voice to your baby, wait until your baby “gets used to” the song, then switch to a male voice and observe how your baby reacts differently. 4 months old babies can not only distinguish tones, but their hearing is also significantly enhanced. Turn your head. Language Your baby is beginning to use speech to express his or her feelings, and the sounds that come out of his or her mouth are no longer just a few vowel sounds. When babies find interesting games, they smile, clap their hands, coo, and make loud noises on purpose. Babies can also often change the sound area, sometimes with closed lips squeeze the airflow, to make “Wu”, “F”, “silk” and other sounds; sometimes the lips a closed and issued Sometimes, the lips will open and close to make the sound of “ah” and “puff”. Action Move ~ baby to do the whole body exercise prone baby’s upper body can be fully raised, the head can also be straight, and can also hold on for a few minutes. When lying on their backs, babies will raise their feet high and try to kick the hanging toys; sometimes they will cross their feet and rub their feet back and forth. The baby’s little hands are not idle, and the two little hands can be freely closed and opened. They will put their hands together and play with each other; they will often smack their little hands like nobody’s business, and even stick their whole fist into their mouths, “hungry” up and also a stretch to grab their little toes.