Medical Definition of Anal fistula

  • Medical Author:
    William C. Shiel Jr., MD, FACP, FACR

    Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

Anal fistula: An opening in the skin near the anus that leads into a blind pouch or may connect through a tunnel with the rectal canal.

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Reviewed on 12/11/2018

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