After fat liquefaction after surgery, the incision is open and should be continuously drained, in addition, the wound is regularly cleaned and disinfected, and when there is no liquefied fat, the incision can be sutured. 1. Continuous drainage: When fat liquefaction occurs after surgery, it is necessary to remove the sutures at the liquefied incision and leave the incision open or place drainage strips, the purpose is to continue to drain the liquefied necrotic fat and secretions, so as to avoid the liquefied fat from affecting the healing of wounds or incision infection. 2. Regular cleaning and disinfection: when the incision is open after fat liquefaction, the open incision and surgical incision need to be disinfected and rinsed if necessary to prevent wound infection. 3. Surgery: For the incision after fat liquefaction, after effective treatment will gradually recover, at this time can be based on the wound healing situation for cleaning suture, to promote the healing of the incision. Note that the surgical suture should only narrow the wound, and should not be tightly sutured, which may lead to infection due to poor drainage of secretions in the wound.