前列腺增生是老年人常见病．是引起下尿路梗阻的主要原因。又因常伴发心血管和呼吸系统等病症，限制了切除前列腺之适应症。过去常施膀胱造瘘或睾丸去势等．病人的生活质量受到影响。近年来应用激光，微波，射频．冷冻等物再治疗法．虽各有千秋．但均有弊端,且疗效也非十分肯定 Prostatic hyperplasia is a common disease in the elderly. Is the main cause of lower urinary tract obstruction. Because often associated with cardiovascular and respiratory disorders and other diseases, limited the removal of the indications of the prostate. In the past often used bladder fistula or testicular castration and so on. The patient’s quality of life is affected. In recent years the application of laser, microwave, radio frequency. Frozen and other re-treatment method. Although different. But both have disadvantages, and the effect is not very sure