A baby’s 42-day checkup is usually done at the hospital of birth and is usually free, but may vary by region, hospital or testing program. Babies 42 days to the hospital for a physical examination, usually free of charge, but because of the local hospital or testing program may vary, some need to be charged. In addition some hospitals may already have a card at the time of birth and charge this fee in advance, so the 42-day physical examination is usually done at the birth hospital without further charge. The physical examination includes: measurement of weight, height, head circumference, chest circumference, and other parameters of physical development to assess growth; examination of the skin, oral mucosa, and umbilicus for infections; transcutaneous measurement of bilirubin; hip examination, funduscopic examination, and a second hearing screening. Each hospital will vary slightly. The 42-day infant checkup is important for your child and you need to take your child to the hospital in a timely manner for evaluation.