A child born at 29 weeks is considered preterm, and a preterm child may be 2-3 months away from a full-term delivery. Premature babies stay in the neonatal unit usually around 2 months, first of all to ensure that there is good breathing and prevent infection. At the beginning, they may not be able to suck on their own for 29 weeks, so they have to be fed through a nasal feeding tube, and they can be fed to a certain extent to open a small amount of milk, and it takes a few weeks before they can suck on their own. Premature babies can be discharged from the hospital if they can suckle a normal amount of milk within 2 months, if they do not have jaundice or infections, and if their functions are basically close to those of a full-term baby after birth. However, it varies from person to person. If there is an infection in the womb, the hospital stay will be longer if the baby is born with an infection. If there are other problems, the hospital stay may be 2 months, and the discharge index is to be able to suckle normal amount of milk, weigh more than 2kg, have no infection or jaundice, and ensure normal feeding after going home.