The baby’s umbilical cord needs to be sterilized every day before it falls off. After the baby is born, the umbilical cord will be ligated and cut, leaving the umbilical cord stump, which normally dries up naturally after one day of birth, starts to fall off in 3-4 days, and can heal on its own after 10 days. Before self-healing, parents should disinfect the umbilical cord every day, the specific operation is to gently lift the umbilical cord with one hand, take a cotton swab dipped in 75% alcohol, disinfect the root of the umbilical cord first, clockwise around the umbilical cord, the scope of the umbilical cord from the root of the umbilical cord of the skin of the two centimeters, and then disinfect the cord, disinfection of the umbilical cord nest can be used with more than one cotton swab, the umbilical cord nest should be wiped clean. Parents are reminded that used cotton swabs should not be dipped in alcohol for use again, and attention should be paid to keeping the umbilical cord clean and dry at all times.