The exact time for a newborn’s umbilical cord to fall off varies from person to person. It usually starts to fall off 3-7 days after birth, some may take a little longer, but usually not more than 2 weeks. Under normal circumstances, the umbilical cord will naturally dry up within 34-48 hours after birth, start to fall off after 3 days, and heal on its own in 10-15 days. If the umbilical cord has not fallen off after 2 weeks, the child can be observed for a few more days if he/she does not have any abnormal reaction. If the umbilical cord has not fallen off after more than 20 days, it is recommended to consult a doctor in time. In addition, it is important to keep the area dry before the umbilical cord falls off, especially if the root of the umbilical cord is inadvertently wet during bathing, it should also be wiped with a clean cotton swab before proceeding with the care of the umbilical cord. Diapers should also not cover the umbilicus to avoid contamination of the umbilicus by urine and stool, and diapers should be changed frequently. The specific time for the umbilical cord of newborns to fall off is uncertain, and if it takes too long to fall off, there is no need to be overly nervous, so pay attention to good umbilical cord care in your daily life, and go to the pediatrician for treatment of any abnormalities.