Newborn disease screening primarily focuses on phenylketonuria and congenital hypothyroidism, as well as hearing tests. Early detection and treatment can help prevent diseases that affect the baby’s intellectual development. It is crucial for parents to actively cooperate with doctors during the screening process, as early treatment is vital for the baby’s intellectual growth. Usually, these screenings do not affect the baby’s future development. If there are no other issues, parents can care for the baby by enhancing nutrition and normal feeding (including breastfeeding). Additionally, remember to regularly supplement the baby with cod liver oil and take the baby out for sunbathing. Approximately one week after birth, the baby may experience normal physiological phenomena such as physiological jaundice, milk teeth, frog mouth, false menstruation, and newborn rash, which usually do not require special treatment.