名词
中文翻译：外部痔疮
同义词：
['external hemorrhoidal', 'external hemorrhoidal disease']
例句：
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1. Hewas diagnosed with an external hemorrhoid and required surgery.
他被诊断出患有外部痔疮，需要手术治疗。
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2.The doctor advised him to avoid constipation to prevent further complications.
医生建议他避免便秘，以防止进一步并发症。
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3. The patient experienced severe pain during the procedure, which is a common symptom of external hemorrhoids.
患者在手术过程中经历了严重的疼痛，这是外部痔疮的常见症状。