Umbilical cord blood preservation should be done according to one’s own wishes. Umbilical cord blood refers to the blood left in the placenta and umbilical cord after the umbilical cord is ligated and disconnected after the delivery of the fetus. The advantage of preserving cord blood is that cord blood contains a large number of stem cells, which can reshape the body’s blood cells, enhance the body’s immune function, and can be transplanted to save some special diseases. Umbilical cord blood can be used not only for oneself but also for immediate family members. On the other hand, if the cord blood is kept for a certain period of time, if it is frozen for a long period of time, the activity of the stem cells cannot be guaranteed, and the probability of successful transplantation is not 100 percent. In addition, there may also be genetic problems in the cord blood that may not allow for transplantation. Umbilical cord blood preservation is more expensive, the conditions are more strict, and it needs to be taken when the fetus is just delivered to be effective. Therefore, cord blood preservation should be carried out according to one’s own wishes, and if there are any symptoms of physical discomfort, one should go to the hospital in time and consult a physician for guidance.