The Surgery Group of Los Angeles, 8631 West 3rd Street, Suite 200E, Los Angeles, CA 90048, USA.
Gastroenterol Clin North Am. 2013 Dec;42(4):801-13. doi: 10.1016/j.gtc.2013.09.002. Epub 2013 Nov 7.
Pruritus ani is a common condition with multiple causes. Primary causes are thought to be fecal soiling or food irritants. Secondary causes include malignancy, infections including sexually transmitted diseases, benign anorectal diseases, systemic diseases, and inflammatory conditions. A broad differential diagnosis must be considered. A reassessment of the diagnosis is required if symptoms or findings are not responsive to therapy. The pathophysiology of itching, an overview of primary and secondary causes, and various treatment options are reviewed.
肛门瘙痒症是一种常见病症，其病因众多。原发性病因主要为粪便污染或食物刺激。继发性病因包括恶性肿瘤、感染（包括性传播疾病）、良性肛肠疾病、系统性疾病和炎症性疾病。因此必须考虑广泛的鉴别诊断。如果症状或检查结果对治疗无反应，则需要重新评估诊断。本文综述了瘙痒的病理生理学、原发性和继发性病因以及各种治疗选择。
