Generally speaking, there is not much difference between a newborn’s full-term checkup and a 42-day checkup. The first checkup in these two time periods is for the newborn’s basic physical measurements, such as weight, length, head circumference and chest circumference, to determine the child’s growth and development. The second is for some basic items, such as chest examination, to determine whether the newborn’s heart and lungs have any abnormalities; there is also a back examination to see if there is any spinal deformity; limb examination is to check whether the limbs are symmetrical, isometric, and whether there is any congenital hip development abnormality, etc. The third is also for the reproductive system examination. The third checkup is for the reproductive system and the nervous system. The items of the newborn’s full moon physical examination are not exactly the same everywhere, so you can consult with the hospital.