FISTULA
What Is It
Anal Fistula is an abnormal passage (communication) between the interior of the anal canal (or rectum) and the outer skin surface around the anus i.e - One Opening of the fistula (Internal opening) is inside the anus (or rectum) and another opening (External opening) is on skin surface around the anus. A tube like structure ( Fistula track) connect them.
Symptoms
- Persistant seropurulent (sticky) discharge of pus and/or stool from the external opening of the fistula.
- Irritation of skin.
- Itching.
- Pain
- Flatus (gas) escape from external opening.
Causes
- Abscess
- Tuberculosis.(T.B).
- Cancer.
- IBS (Inflamatory bowel Syndrome).
- Ulcerative colitis.
- Crohn's disease.
Diagnosis
- Fistula Probing.
- Fistulogram.
- MRI.
- Endorectal ultra sonography.
Types
- Low anal (75%).
- High anal (8%).
- Subcutaneous(5%).
- Ano- rectal (7%)
- Ano- rectal (7%).