Newborns need to be examined on the 42nd day after birth. Postnatal checkups are needed 42 days after delivery, and newborns also need checkups, mainly to check their growth and development, intelligence, and hearing, etc. Physical checkups (head circumference, height, and weight), full body checkups (head shape, fontanel, cardiopulmonary diagnosis by visual and auditory auscultation, abdominal diagnosis by visual and palpatory diagnosis), as well as hip and joint checkups, etc., will facilitate the doctor’s guidance in the event of any abnormality, and allow for early detection and early treatment, so as to avoid missing the opportunity for treatment. It is recommended that babies wear clothes that are easy to put on and take off when going to the hospital for checkups, so that the doctor can do a full-body checkup for the baby, and bring spare change of clothes and diapers to avoid discomfort caused by the long waiting time for checkups.