The umbilical cord of a newborn will fall off automatically when the newborn is about half a month old. You should pay attention to disinfecting the umbilical cord, you can use the cotton swab and iodophor brought back from the hospital to disinfect the umbilical cord for your baby, after dipping the cotton swab in iodophor, turn it around the umbilical cord at the root inward to help your baby’s umbilical cord to fall off. If the umbilical cord is delayed in falling off, you need to pay attention to two situations: 1) whether the baby has an umbilical infection and falls off too late; 2) it may be due to too thorough disinfection, resulting in delayed umbilical cord falling off, you can use erythromycin ophthalmic ointment or erythromycin ointment applied around the root of the umbilical cord, and then pull the umbilical cord outward, and then continue for a few days after the umbilical cord can be naturally fall off. If the cord does not fall off naturally, you should go to a surgeon to look for the cause, whether it is caused by an umbilical infection or other abnormalities that delay the fall of the cord. There may be a little bleeding after the umbilical cord falls off, but as long as there is no inflammatory secretion, it can recover naturally after simple disinfection.