In the first month of a newborn’s life, it is normal to grow 2-3 pounds. Each newborn is different, so the weight gain may vary. If the newborn’s weight gain is relatively small, less than 1.5-2 pounds, it means that the newborn’s weight gain is too slow, and you need to find out the reason, so as not to lead to the newborn’s growth and development problems. Newborns in the first week after birth, due to insufficient milk intake, meconium discharge, there will be a temporary weight loss, generally also known as physiological weight loss, to the newborns after the birth of the 7th -10th day, probably will return to the birth weight, parents do not have to worry too much. If breastfed newborns have less weight gain, it may be caused by insufficient milk, and you need to increase the frequency of breastfeeding, as well as the amount of breastfeeding. If after increasing breastfeeding, the newborn still gains less weight, it may be due to insufficient breast milk secretion, and need to promote breast milk secretion, the mother can eat more food to promote breast milk secretion, such as more pork rib soup, chicken soup, pig’s trotters soup, fish soup and so on, to promote breast milk secretion. If the weight gain is still low through the above methods, it is necessary to supplement milk powder appropriately, and gradually increase the amount of milk powder under the guidance of the doctor according to the newborn’s daily age. If there is no breastmilk and the weight gain is low when the baby is fed with milk powder, it may be due to inappropriate proportion of milk powder and small amount of feeding, such as diluted milk powder and small amount of milk at one time, which leads to insufficient nutrient intake of the newborn baby, resulting in relatively low weight gain. If the newborn has gastrointestinal dysfunction, bloating, vomiting, etc., resulting in malabsorption of nutrients, it may also affect the growth and development of the newborn. Parents need to reduce or add the amount of milk powder appropriately. If diarrhea occurs, it is recommended to give the newborn antidiarrheal or digestive drugs as prescribed by the doctor, such as Bacillus subtilis diabetic granules, Bifidobacterium triabactum live bacteria powder, and so on. If the newborn’s weight continues to drop, if necessary, take the newborn to the hospital, through the relevant examination, to clarify the cause of the disease, symptomatic treatment active treatment.