Abstract:[Objective] To explore the factors related non-infection poor incision healing after hip and knee surgeries. [Methods] A retrospective study was done on wound healing condition of 938 patients who underwent hip and knee surgeries from June 2021 to June 2024. Univariate comparison and multiple factor logistic regression analysis were used to explore the factors related to poor incision healing. [Results] All the 938 patients had corresponding surgical procedures performed successfully, with 30 patient graded as postoperative non-infection poor incision healing (PIH), accounting for 3.2%. The PIH group proved significantly greater than the normal healing group in terms of BMI [(26.0±3.6) kg/m2 vs (23.6±3.8) kg/m2 , P=0.004], diabetes mellitus [yes/no, (14/16) vs (11/49), P=0.020], smoking [yes/no, (16/14) vs (11/ 49), P＜0.001], proportion of DAA approach [DAA/PLA/ anterior knee, (25/1/4) vs (25/29/6), P＜0.001], intraoperative blood loss [115.0± 73.2) mL vs (95.9±83.5) mL, P=0.013], surgeon skill level [primary/medium/high, (9/17/4) vs 6/25/29), P＜0.001]. As consequence of multivariate logistic regression, smoking (OR=6.776, P=0.003), surgeon skill level (OR=3.865, P=0.007) and surgical approach (OR=2.379, P= 0.040) were independent risk factors for poor incision healing after hip and knee surgeries. [Conclusion] Surgical approach, the surgeon skill level and smoking are the main risk factors for postoperative poor incision healing.