Most of them only need simple modifications, such as cleaning and removing scales and light makeup of the navel. These modification methods are harmless to health and can be widely used. However, painting navel is suspected of being allergic to oil paint and should not be advocated.

There are not many umbilicus that need plastic surgery, and the indications are trauma, umbilical scar after infection, deformity left by operation of infantile umbilical diseases, or umbilical dysplasia that really affects beauty.

The "full moon umbilical cord" formed by ascites due to liver cirrhosis, the "sea snake umbilical cord" formed by abdominal varicose veins, and the tumor umbilical cord formed by metastasis of visceral cancer are not plastic surgery and are absolutely not allowed. The "umbilical hernia", which often causes fecal discharge and pus, and umbilical infection, does not belong to the category of cosmetic surgery and should be cured by surgery.

The obese navel without plastic surgery should be shallowed by losing weight; The "omphalocele" in the third trimester will disappear automatically after delivery; A prominent navel without pathological factors should be regarded as a unique appearance. As the saying goes, "the horse is thin and hairy, and the man is thin and the navel is convex." In this case, you can exercise your abdominal muscles, increase nutrition, and make your navel full of muscles and fat, and your navel will naturally sag. Of course, if the bulge is ugly, you still have to go to a regular hospital for examination. After excluding pathological diseases, you can do standard umbilical plasty.

Round umbilicus, rhombic umbilicus, concave umbilicus and convex umbilicus are beautiful as long as they are not pathological umbilicus formed by pathology. Just as the world is diverse, navel beauty can't pursue a single model.