Types and variants of ureterocele are specified basing on 115 clinical cases and literature data. Three types of this anomaly exist: intravesical, cervicosphincteral and extravesical. Intravesical ureterocele can be orthopedic and ectopic. The latter has three variants: of accessory ureter, of partially double ureter, of non-double ureter. ureterocele is frequently associated with low ectopy of ostium ureteric, double ureter. ureterocele occurs neither in the ureter itself nor in high ectopy of the ostium ureteric. Extravesical ureterocele has many variants which differ in males and females. All ureterocele types and variants occur as unilateral or bilateral. The new diagnostic method is proposed: endovesical ureterocelegraphy.
