The weight change of 30-week preterm babies is slower compared to full-term babies, but it is not absolute. Generally preterm babies are lighter than normal newborn weight at birth and have poorer digestive function than normal newborns, so preterm babies do not grow as fast as normal newborns. However, for preterm babies who are in relatively good condition, are well fed, and have no other illnesses present, they may also grow 1 to 2 pounds a month. However, for preterm babies who are in poorer condition, are not fed well, and have other illnesses present, weight gain will be slower. The speed of weight change in preterm babies is also related to the physical condition of the preterm baby, feeding situation, and the presence of other diseases. If your preterm baby’s weight changes slowly, it is recommended that you consult a doctor and feed him or her accordingly.