手術後傷口感染對於病患的生理、經濟及醫院的醫療成本都有相當大的影響。要控 制手術部位的感染，必先了解影響感染發生的因素，才能對症下藥，預防感染的發生，或是 及早處理感染的問題。本文將探討手術前期及手術中期與傷口感染相關的危險因素，以及預 防感染發生的良好措施，提供醫護人員參考，使病患能獲得更有品質的醫療照顧。

　　　　　Surgical infection is the most common nosocomial infection among hospital patients. There are many risky factors affecting the incidents of postoperative wound infection, including age, underlying diseases, length of preoperative stay, skin preparing, operating room environment, blood transfusion, the duration of operation, drainage, and preoperative prophylactic antibiotics. We can perform the best practices for the prevention of surgical sit infection by better unuerstanding the it.