Postoperative fat liquefaction in the surgical incision of the abdomen may manifest as a local inflammatory reaction with redness, swelling, pain, and even fever. Laboratory tests may also reveal an increase in the blood picture, mainly in the proportion of neutrophils. In this case, the sutures should be removed promptly, the liquefied fat or purulent secretions should be removed, and the residual cavity should be filled with iodophor gauze or sterile gauze. It should also be combined with intravenous anti-infective treatment by applying broad-spectrum penicillin sodium intravenously. The purpose of changing the medication daily is to promote rapid healing of the cavity. During the treatment period, attention should also be paid to general treatment, mainly dietary therapy, with high protein foods and vitamin-rich foods, and regular and unobstructed bowel movements, as increased abdominal pressure can also affect the wound healing.