After the delivery of a newborn baby, the umbilical cord should be tied. Most of the tied umbilical cords will fall off in about 3 to 10 days after birth, and the time of falling off is related to the way the umbilical cord is tied. There are some babies who may have late umbilical cord detachment, and there are several common reasons for late umbilical cord detachment. The vast majority of premature babies have late umbilical cord detachment, so it is important to sterilize the umbilical cord properly to prevent local infection. Some newborns have thick umbilical cords, and when the umbilical cord is ligated, the ligature is not very tight, not completely blocking the blood supply of the umbilical cord, so the umbilical cord’s remnants are not easy to necrolyze and fall off, if this occurs, parents need to take their babies to the hospital, so that the surgeon can deal with it. Some babies’ umbilical cords fall off late because usually there are some secretions from the umbilical cord, and parents do not do a good job of local disinfection, so that local secretions and some blood and the ligated umbilical cord are tightly adhered to each other, thus affecting the timely fall off of the umbilical cord, encountered in such a situation, we just need to use iodine vodka or alcohol to seriously disinfect the root of the ligated umbilical cord, and clean up blood and secretions, so that the umbilical cord can be removed soon. The umbilical cord will soon fall off. The shedding of the umbilical cord of a newborn is a natural process, after the birth of the child must do a good job of daily disinfection of the umbilical cord, which will help the early shedding of the umbilical cord.