hemorrhoidal ring

例句：

1. 1. Hemorrhoidal rings are a common cause of pain in the lower part of the anus.
   痔疮环是肛门下部疼痛的常见原因。
2. 2. The patient was advised to avoid spicy food and hemorrhoidal rings.
   病人被建议避免辛辣食物和痔疮环。
3. 3. During surgery, the surgeon removed the hemorrhoidal ring and repaired the damaged tissue.
   手术期间，外科医生移除了痔疮环并修复了受损的组织。