Although the etiology is still not clear chronic irritation urethral caruncle urethrocele and urethrostenosis seem to play a role in the development of urethral carcinoma .

病因尚不清楚，但慢性刺激、尿道 肉阜、 尿道 憩室、尿道狭窄与尿道癌 发生有 一定 关系。