Analysis of illness: one is umbilical plastic surgery: correcting bad umbilical morphology, such as umbilical narrowing and umbilical deepening (shallowness); The other is navel reconstruction: that is, reconstruction of the missing navel,

Guidance: Not everyone is suitable for navel plastic surgery. "Full Moon Umbilical Cord" caused by ascites due to liver cirrhosis, "Sea Snake Umbilical Cord" caused by abdominal varicose veins and "Tumor Umbilical Cord" caused by visceral cancer metastasis are not allowed in the introduction of navel plastic surgery.