In the absence of special circumstances, most 28-week fetuses survive, and a few 28-week fetuses do not. The 28th week of gestation is a critical point in time for whether the fetus can survive after being separated from the mother, because at 28 weeks of gestation the fetus already moves, sleeps and wakes up on a regular basis, the sensory organs have become quite sensitive, the lungs already have physiological functions, and, of course, due to the low content of alveolar surface active substances, it is prone to suffer from respiratory distress syndrome after birth. However, with the development of medical technology, even if a 28-week preterm baby belongs to the category of very low-birth-weight babies, it can usually survive with proper care and no other serious complications in the fetus. However, in the case of a 28-week fetus with pulmonary hemorrhage, cerebral hemorrhage, or other serious malformations after preterm delivery, the survival rate may be lower. Therefore, in the case of a 28-week pregnancy, it is recommended to try to prolong the gestational week by medical means, through bed rest, the use of drugs to promote the maturation of the fetal lungs, and the treatment of fetal preservation.