The baby’s umbilical cord dries up and does not fall off because there is still a connection inside the umbilical scab. Newborn umbilical scabs usually fall off in about half a month, but there are also babies who recover faster and fall off earlier, and there are also babies who fall off later. If the umbilical scab has dried up and is still not falling off, it may be pus and blood and secretions sticking together, so you should disinfect it in time to prevent your baby’s belly button from getting infected. You should disinfect the umbilical scab 2-3 times a day after birth. Wash your hands before disinfection and use alcohol to disinfect the scab, pinch the scab with one hand and tilt it at 45°. Observe whether there is redness and swelling around the navel and whether there is any abnormal discharge or odor. If there is, you should go to the hospital to prevent umbilical infection and avoid touching the umbilical scab that has dried and not yet fallen off when dressing your baby and changing diapers to prevent harm to your baby.