The reason why more and more people choose to preserve umbilical cord blood In the past, people had relatively little knowledge about umbilical cord blood, so they were unable to realize the importance of preserving umbilical cord blood. However, more and more people are choosing to save umbilical cord blood. Why? In this article, we will explain it in detail from four aspects to better understand this phenomenon. 1. Based on safety and reliability considerations First of all, many parents choose to save umbilical cord blood in order to make it safer and more reliable during future treatment.