Colostrum is the main and best food for the development of the baby during this period. Science has proven, IgA in breast milk for the first 7 days contains thousands of times higher levels than normal milk and up to 4,000 white blood cells in 1cm3 of colostrum have the ability to help babies destroy intestinal bacteria. Therefore, mothers should not discard colostrum, but make full use of it to feed the baby. Infants less than a month old, if given colostrum right after birth, the rate of pneumonia and diarrhea will be very low.|Some normal physiological manifestations are also very common in infants less than a month old such as: passing meconium, dark green or odorless, thick stools… However, if it is more than 2 days without Seeing the baby passing meconium, weight loss or jaundice, frequent choking when feeding, shortness of breath, cyanosis, stiff jaw, crying a lot, lethargy is not normal, parents need to take the child to the hospital Check your health status for timely treatment. In case the child’s head has a serous tumor, it is necessary to monitor, not aspirate because it can cause the child to become infected with dangerous bacteria.|In addition, when taking care of an infant under 1 week of age with low birth weight or preterm but no abnormal signs, it is necessary to monitor it at a medical facility until the doctor agrees to discharge it. When returning home, it is necessary to monitor and take care of the child carefully.