We report a case of papillary adenoma of the bladder. The patient had had intermittent self-catheterization for the previous 3 years. The tumors developed multiply and were identified on the trigone and posterior wall of the bladder. Dysplasia of the urothelium was associated in nontumorous areas. Transurethral resection of the tumors was performed. The tumor recurred 3 times for 3 years, but no malignant changes were identified.