[Lesions around the rectum. Diagnosing and treatment abscesses and fistulas].

Anorectal abscesses and fistulas are among the most common anorectal lesions. They represent different phases of one and the same condition, the abscess being the acute manifestation, the fistula the chronic form. In the event of a strong suspicion, rapid referral to hospital, preferably one specializing in proctology, is indicated. The treatment of choice of both abscesses and fistulas is surgery. Abscesses are widely incised and decompressed. Fistulas showing signs of fresh secretion may be treated initially by the insertion of a thread, and subsequently undergo definitive surgical treatment. The surgical procedure is determined by the site of the fistula. Attendant risks include recurrence and incontinence. When fistulas occur in Crohn's disease, the indication for surgical treatment must be stringently applied. In the absence of complications, postoperative healing of the wound should be checked regularly.