perianal

例句：

1. 1. The doctor performed a thorough examination of the patient's anal area.
   医生对患者的肛门区域进行了彻底的检查。
2. 2. The patient experienced pain and discomfort during the procedure.
   患者在手术过程中感到疼痛和不适。
3. 3. The anal region is prone to infections due to poor hygiene.
   由于卫生条件不佳，肛门区域容易感染。