Perianal fistula, usually has a criptoglandular etiology, developing from a perianal abscess and communicating the anal mucosa with the perianal skin. The aim of this paper is to study retrospectively 241 cases of perianal fistula (172 men and 69 women; 2,5:1) aging from 7 and 80 years old (average: 37,4 years), operated on at the Hospital da Clínicas - UFMG, from 1977 to 1996. The surgical techniques and post-...