Anal abscess and fistula
A fistula-in-ano represents the chronic phase of ongoing perirectal sepsis. Surgery is nearly always needed to treat an anal fistula. However, while most abscesses are visible on the outside of the skin around the anus, it is important to recognize that there may be no external manifestation of an abscess, other than a complaint of rectal pain. Fever and chills can result from the infection. The internal opening is closed with an absorbable suture. Techniques and results in the management anal abscess and fistula anal and perianal Crohn's disease.