This condition may complicate anorectal abscesses
- Crohn’s disease
- Ulcerative colitis
- Colloid carcinoma of the rectum
- HIV infections.
The types of fistula in ano
- Subcutaneous (anus to skin)
- low anal (open below the anorectal ring)
- High anal
- There is persistent seropurulent discharge
- periodic pain and pouting openings in the neighbourhood of the anal verge.
Appropriate examination involves palpating the anal internal opening for a nodule on digital examination; confirmation is made at proctoscopy.
- Determine the primary pathology.
- Deal with the primary pathology as well as the fistula.