Premature birth refers to a baby born after the pregnancy has reached 28 weeks but before completing 37 weeks. Most of these babies weigh less than 2500 grams at birth and have poorer adaptive abilities compared to full-term babies. They require special care. Feeding premature infants can be challenging. They generally need to be fed breast milk or formula every two to four hours. Start by feeding once or twice; if there is no vomiting for six to eight hours, continue feeding some milk. Also, position the baby's head to one side to prevent inhalation of vomit.