Hello, navel cosmetic plastic surgery includes: 1, navel plastic surgery: correcting bad navel shape, such as navel contraction, navel deepening (shallow), etc. 2. Umbilical cord reconstruction: that is, reconstructing the missing umbilical cord is a hidden structure. So local cleaning is very important. From the second day before the operation, the navel should be cleaned under the guidance of a doctor. After cleaning, it should be kept locally dry. What I care about is that it must be done in a regular hospital before the operation, because some informal hospitals are not thoroughly disinfected and are easy to get sick.