Premature babies discharged from the hospital still need to pay attention to the following matters: 1. Premature babies are prone to various complications such as hyperbilirubinemia, anemia, malnutrition, chronic lung disease, retinopathy of prematurity, brain injury, etc. Please bring your discharge record to our neonatal clinic for follow-up within 1 week after discharge, and follow up with the clinic for preterm babies from 40 weeks to correct the gestational age. If you insist on exclusive breastfeeding, it is recommended to supplement “breast milk additive” to make up for the lack of nutrition in premature breast milk; if you need artificial feeding, please continue to use preterm infant formula or transitional formula, under the guidance of the follow-up doctor, until the weight is suitable for the corresponding gestational age and then change to normal infant formula. Infant formula. If you need to follow up, please go to our ophthalmology department or Shenzhen Eye Hospital to follow up the changes of fundus to exclude retinopathy of prematurity or other eye diseases. 4. Due to immature development of the nervous system, premature infants are prone to intracranial hemorrhage and brain white matter damage, which may lead to mental retardation, hydrocephalus, cerebral palsy and other sequelae. It is recommended that cranial MRI be performed if necessary, and regular follow-up neurobehavioral checkups and hearing checkups should be conducted at our child psychological behavior specialist after 40 weeks of corrected gestational age. 5. If there is no special contraindication, those who weigh more than 1 kg will be vaccinated with hepatitis B vaccine after birth, and those who weigh more than 2.5 kg will be vaccinated with BCG vaccine; if they are not vaccinated, please go to the hospital of birth after discharge if they weigh more than 2.5 kg, and those who are born in our hospital should first go to the Department of Pediatrics for medical examination and billing, and then go back to the neonatal department for injection; later, they will be vaccinated regularly at the community health clinic.