Transurethral resection of the prostate (TURP) remains the gold standard for the treatment of prostatic hyperplasia (enlarged prostate). Approximately 10 million transurethral resections of the prostate (TURP) are performed each year worldwide and 2 million in China, making it the second most common procedure after cataracts. However, for severe prostate enlargement >80g, TURP is prone to hemorrhage and water toxicity (TURP syndrome), which is a great threat to patients. In the last decade, scholars at home and abroad have made many explorations, such as holmium laser, green laser and 2 micron laser prostate vaporization, transurethral electrovaporization of the prostate, transurethral enucleation of the prostate, etc., or because of the long operation time, residual prostate, and the occurrence of transient and permanent urinary incontinence, which often troubled doctors and patients. Professor Zhang Jiahua proposed a new view of urinary control in 2000, “the length and function of the functional urethra (urethral elasticity, pressure, and plugging action of the mucosal pad) are the two most important factors for urethral control of urine under the premise of normal extra-urethral factors (innervation, external urethral sphincter)”, and designed several new procedures on this basis. The “transurethral preservation” of part of the anterior urethral wall “prostate enucleation electrosurgery”, after 200 patients clinical application, can completely remove the hyperplastic prostate tissue (comparable to simple prostate enucleation, better than open surgery), urination is very smooth, the maximum The urinary flow rate is 20ml/s; all serious postoperative complications, especially urinary incontinence, are avoided. The procedure is not a surgical procedure, and it is a safe procedure: the enlarged prostate is removed from the surgical (pseudo) envelope, and the smooth envelope absorbs very little water, and the blood Na+.K+.Cl-. Hct does not change significantly, no serious water toxicity and perioperative hemorrhage occur; Second, the prostate hyperplasia tissue is completely removed, the surgical effect is very good Both the prostate hyperplasia body around the seminal fossa can be removed to achieve the tissue removal rate of open surgery, and the hyperplasia tissue outside the pseudo-envelope near the bladder neck can be removed to achieve the degree of removal of the bladder neck during transurethral resection, reducing the postoperative recurrence rate and the urinary flow rate is very The average maximum urinary flow rate was 22.5 ml/sec; in one case, the maximum urinary flow rate was 58 ml/sec at 3 months after surgery and 42.5 ml/sec at 6 months after surgery; Third, the length of hospital stay was shortened and health resources were greatly saved: the duration of indwelling urinary catheter was short, with an average of 18 hours (minimum 8 hours) for extubation (3-5 days for extubation in traditional TURP and enucleation), shortening the length of hospital stay by 3-5 days. -5 days, reducing patient costs by 5,000 yuan per case; at the same time, bed turnover is accelerated, saving health resources. The anterior wall of the prostate is preserved during surgery, which is equivalent to the “urethral ridge”, and the prostatic hyperplasia in this area is not obvious and will not cause obstruction; on the contrary, the anterior wall of the urethra is preserved, and the tissue stretches to form a funnel during urination, which reduces the flap resistance of the steep section of the prostate tip during enucleation and reduces the impact on urodynamics. The day the tube is removed, the urinary flow rate is significantly higher than other surgeries. Fourth, greatly reduce the incidence of delayed hemorrhage: the prostatic fossa trauma after surgery is smooth pseudo-envelope, the electrocuted trauma is minimal, reducing scab detachment, no delayed hemorrhage occurred in this group; Fifth, no postoperative incontinence: the preserved “urethral crest”, which acts as a plug for the mucosal pad during the urinary storage period, increases urethral pressure and urethral closure area, no urinary incontinence (including transient incontinence) occurred in this group. 6. Prevention and reduction of bladder neck contracture: the preserved “urethral ridge” can prevent and reduce bladder neck contracture. Fast recovery: The mucosal tissue can grow from both ends to the center and in a circular pattern, so the epithelial coverage is faster and the recovery time is reduced. VIII. Greatly reduce retrograde ejaculation: during ejaculation, the “urethral crest” and the bladder neck pseudo-peripheral tissue close the bladder neck and greatly reduce retrograde ejaculation. Therefore, the procedure is safe, efficient and economical, avoiding all complications, bringing a boon to patients and relieving doctors of their worries, and is expected to replace TURP as the ‘gold standard’ of surgical treatment for prostate enlargement.