Hello, navel plastic surgery can use navel plastic surgery: correct bad navel shape, such as narrowing of navel, deepening (shallow) of navel, etc. Umbilical cord reconstruction: The reconstructed umbilical cord is a crypt-like structure, so local cleaning is very important. The umbilical cord should be cleaned under the guidance of a doctor from 3 days before operation, and it should be kept locally dry after cleaning.