Conclusions:Postoperative dysuria is mainly attributed to bladder neck obstruction in suprapubic prostatectomy and to residual gland in TURP.

• 结论：膀胱颈口梗阻为耻骨上前列腺切除术后引起排尿困难的主要原因，而腺体残留则为经尿道前列腺电切术后排尿困难的重要原因。