Methods To do nursing for possible subcutaneous fat necrosis of critically ill, old ages, diabetes, chronic disease and malnutrition patients ahead of time, and treat the section with b-FGF. 方法对危重、老年、糖尿病、慢性病及营养不良患者术后可能出现的切口脂肪液化提前介入护理,脂肪液化切口早期使用b-FGF(外用重组人碱性成纤维细胞生长因子)处理创面。