The 42-day pregnancy baby checkup program mainly includes growth and development indicators, physical examination, internal organs examination and other aspects. 1. Growth and development indicators: 42-day baby checkup focuses on growth and development indicators, including whether the baby’s weight, head circumference, chest circumference, body length, abdominal circumference and other data have reached the standard range. Also know the baby’s daily feeding, urination and defecation. 2. Physical examination: when checking the 42-day-old baby, you need to observe the color of the baby’s skin, whether there is jaundice, pallor and other symptoms. 3. Internal organs examination: When checking the internal organs of a 42-day-old baby, the heart, lungs, liver, spleen, abdomen and other internal organs are examined. 4. Other: 42 days baby also need to check hip development, central nervous system development, hearing, vision, motor function and so on. In addition to the baby’s checkup on the 42nd day after delivery, the mother also needs to have a physical examination, and it is recommended that both the mother and the baby need to go to the hospital in time.