[Clinical study of six cases of pyourachus at our hospital].

We encountered 6 patients with pyourachus (male, 1; female, 5) who ranged in age from 17 to 58 years (mean, 41 years) during the 7 years from 1993 to 1999. Three of them had a history of gynecological surgery, and 2 had a history of appendectomy. Improvement was observed in one patient with conservative therapy alone, but the other 5 patients underwent surgery.