Methods: Twenty-five cases of urethral diseases underwent urethral retrograde contrast sonography and other ways (X-radial urethral contrast, urethroscope and emiction way of urethral contrast).

• 方法：用逆行尿道声学造影检查25例尿道疾病患者。同时作X线尿道造影、尿道镜、排尿法尿道声学造影进行对比。