Anal fistula causes

Anal fistula Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Manpreet Kaur, MD [2]

Causes

Anal fistula is caused by:

• Crohn's Disease
• Obstetric injury
• Retained[[ foriegn body in rectum
• Radiation proctitis
• Gonorrhea
• HIV
• Cryptitis
• Lymphogranuloma venerum
• Perirectal abscess sequelae of rupture or surgery
• Syphilis
• Thrombosed hemorrhoids
• Tuberculosis
• Ulcerative Colitis