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 of time for the survival of the fetus after separation from the mother, because at 28 weeks of gestation the fetus is already moving, sleeping and waking up regularly, the sensory organs have become quite sensitive, the lungs have become physiologically functional, and of course, due to the low level of alveolar surface active substance, it is prone to respiratory distress syndrome after birth. However, with the development of medical technology, even if a 28-week preterm baby is a very low weight baby, it can usually survive with proper care and no other serious complications in the fetus. However, in the case of a 28-week preterm fetus with pulmonary hemorrhage, cerebral hemorrhage, or other serious malformations, 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, and to treat the fetus by bed rest and the use of drugs to promote fetal lung maturation.