urinary obstruction

例句：

1. 1. He was diagnosed with a urinary obstruction and needed surgery immediately.
   他被诊断出尿路梗阻，需要立即手术。
2. 2. Urinary obstruction can be caused by various factors, such as kidney stones or tumors.
   尿路梗阻可以由各种因素引起，如肾结石或肿瘤。
3. 3. The patient experienced severe pain during the procedure and required immediate medical attention.
   患者在手术过程中经历了剧烈疼痛，需要立即医疗关注。