|
| What is it? |
| * An opening through the tissues from the anal canal to the skin near the anal opening. |
| * Opening constantly drains pus to the skin. |
|
| Causes |
| * Infection starts at anal crypts inside the anus. |
| * Abscess bursts, leaving behind a tract from the interior to the anal opening. |
|
| Signs and Symptoms |
| * Constant or intermittent purulent discharge. |
| * Firm-tender lump |
| * Pain during or after bowel movement |
| * Discoloration of skin surrounding fistula. |
|
| Risk Factors |
| * Puncture wound in anal canal lining or injury from an enema tip. |
| * Injection treatment for internal hemorrhoids. |
| * Inflammatory bowel disease. |
| * Acute appendicitis or diverticulitis |
|
| Prevention |
| No particular preventive steps. |
|
| Diagnosis and Treatment |
| General Measures |
| * Minor surgical procedure to excise fistula. Usually with local anesthetic (occasionally general anesthetic required). |
| * Warm sitz baths after surgery to help relieve any discomfort. |
|
| Medication |
| * Stool softeners may be prescribed to prevent constipation. |
| * Antibiotics may be prescribed if an infection is present. |
|
| Activity |
| Resume work and normal activity as soon as possible. |
|
| Diet |
| Regular diet, high in fibre. |
|
| Possible Complications |
| * Constipation |
| * Fistula may recur if not completely excised by surgery. |
|
|
|
| Prognosis |
| Surgical results usually excellent. |
