Needle-free carving is a plastic method chosen by many fairies who love beauty. Although it is a very mature plastic surgery technology, I hope that the fairies in Kyoto will make clear some precautions before surgery: First, we must choose a plastic surgery institution with formal qualifications. Second, we must fully communicate with the doctor before the operation to ensure that the line carving can achieve the ideal effect. Third, avoid touching the line carving wound after operation. Fourth: clean at ordinary times to avoid the wound from getting wet. Fourth: avoid making exaggerated expressions after operation, otherwise it will affect the effect of line carving. Fifth: avoid makeup on the day after surgery. Sixth: avoid spicy food and high temperature environment.