An anal fistula is an abnormal connection in the form of an inflamed canal between the inner surface of the anus and the skin outside the anus. It may be in the form of a single channel or it may consist of several channels in the form of a tree branch.

What are the causes of anal fistula?

The most important cause of rectal fistula and abscess is the inflammation of the glands under the skin in the anus and between the muscles. The causes of rectal fistula can be listed as follows:

Acute diarrhea attack, Trauma caused by foreign body or hard defecation, Inflamed anal fissures, Inflamed anal hematomas, Intestinal parasites, Rectal pinworms, Crohn's disease, Ulcerative colitis, Tuberculosis, Intestinal fungi, Cancers, Inflammation of the lower abdominal region, Severe genital infections

What are the symptoms of an anal fistula?

  • Pain and swelling in and around the anus
  • Itching and burning in the anus
  • Discomfort in sitting position
  • Rectal discharge
  • Rectal pressure or fullness
  • Foul-smelling or bloody discharge around the anus
  • Soiling in underwear
  • Fever
  • Painful urination
  • Constipation

If you have these symptoms, see your general surgeon doctor as soon as possible.