As long as the gestational week does not reach 37 weeks, such a baby is considered premature. Even if some of them do not reach 37 weeks, the development of the baby is still relatively good. For example, the hair is shorter than before, the nails reach the distal end of the fingers, and the skin color is more red and less fetal fat. The Apgar score after birth was assessed in terms of skin color, fetal heart rate, respiration, throat reflex and heart rate. If a score of 10 is obtained at 1 minute, 5 minutes, or 10 minutes after birth, the prognosis of the child is generally very good, even though it was born prematurely.