37+4 weeks is not considered preterm, it is considered full term. Fetuses delivered before 37 weeks of pregnancy are considered preterm, fetuses delivered after 37 weeks and within 42 weeks are considered full-term, and fetuses delivered at 37 weeks plus 4 days are not considered preterm. After 37 weeks of pregnancy, the development of the fetus is basically completed, the length of about 50cm, weight of about 3200~3400g, the fetal brain has been developed perfectly, eye activity and coordination of visual acuity increased, the newborn’s skin after birth is red, the surface of the skin is less fetal fat, and the subcutaneous fat is plentiful. The survival ability of newborns born at 37 weeks plus 4 days is relatively strong, and the chances of neonatal complications will be lower, depending on the situation of each baby to judge. After the birth of the newborn baby to do a good careful care, there are abnormal manifestations of timely medical attention.