Factors unfavorable to wound healing are as follows: First, food, spicy, stimulating food is not conducive to wound healing. Weakness, low immunity, poor nutrition with hypoproteinemia, wound healing is slower. Third, clinically diabetic patients wound healing is very difficult, clinically need to check whether the blood glucose level is normal before surgery, whether the albumin is within the normal range. Diabetic patients need to use insulin to control blood glucose to a reasonable range before surgery, avoid eating spicy and stimulating food after surgery, strengthen the nutrition, the wound healing will be faster.