fistulation

例句：

1. 1. The procedure involves the use of a surgical instrument to perform the fistulation.
   该手术涉及使用外科工具进行结扎。
2. 2. The patient underwent surgery for fistulation and was discharged from the hospital on the same day.
   患者因结扎接受了手术，并于当天出院。
3. 3.The doctor explained that fistulation is a common cause of infertility in women.
   医生解释说，结扎是导致女性不孕的常见原因之一。