circumcision and plastic operation

例句：

1. 1. He underwent a circumcision for religious reasons.
   他出于宗教原因接受了包皮环切手术。
2. 2. The procedure is performed to prevent the spread of sexually transmitted diseases.
   该程序旨在预防性传播疾病。
3. 3. Circumcision is a common practice in many cultures around the world.
   在世界许多文化中，包皮环切是一种常见的做法。