The developmental process of infants from 1 to 12 months mainly includes physical growth, movement and language.
1. Physical growth: normal full-term infants in the first month of weight gain of 1 ~ 1.7kg, 3 ~ 4 months the weight is about twice the birth weight, 12 months the weight is about twice as much as 3 months; 3 months can raise the head, cervical vertebrae convex, 6 months can sit, thoracic vertebrae convex, 12 months can walk, lumbar vertebrae convex.
2. Movement and language: 1 month irregular movements, can make fists, can cry; 2 months can raise head in prone position, can make guttural sounds; 3 months babbling articulation; 4 months can sit holding the hips, can hold hands and laugh; 5 months can stand holding the armpits, can make word sounds; 6 months can sit alone;
In July, they can roll over; in August, they can crawl and repeat adult syllables; in September, they try to stand alone; in October to November, they can stand alone for a few moments and begin to use words; in December, they can walk alone, etc.
Infants can have a pediatrician’s examination from 1 to 12 months to observe the developmental trend of the baby and seek medical attention if there is any abnormality.