The German Revolix 2 micron laser treatment system is another major advancement in minimally invasive laser surgery for prostate enlargement, only through a 0.3 mm diameter optical fiber, under the direct vision of the cystourethroscope through the patient’s urethra to reach the enlarged prostate, when the laser with a wavelength of only 2 microns is irradiated through the fiber to the enlarged tissue, the powerful laser energy is instantly absorbed by water, producing a strong vaporization cutting The powerful laser energy is instantly absorbed by water, producing a strong vaporizing and cutting effect, thus achieving the purpose of removing the hyperplastic tissue. A. The difference between 2 micron laser and traditional surgery: Traditionally, the surgical methods used to treat prostate enlargement are open prostate removal and transurethral resection of the prostate (TURP), but there are many complications and limitations to these means. The procedure is similar to peeling a potato, where only a small piece of hyperplastic tissue can be cut off with each cut. It is easy to be absorbed by the body in large quantities, causing water poisoning and life threatening. In this way, the skill of the operator and the size of the prostate determines the safety and efficacy of the surgery. In general, 1 gram of tissue per minute is considered surgically proficient, and the size of the gland becomes a key factor in the efficacy of TURP. Therefore, the vast majority of surgeons choose to operate on patients with less than 60-80 grams, and only a very few top surgeons are not constrained by prostate size. In most cases, the operator sacrifices the completeness of the resection by keeping the operation as short as possible in order to ensure surgical safety. According to statistics, the average residual glandular tissue after TURP is as high as 50%, which is an important cause of postoperative recurrence. In addition, urinary incontinence and hemorrhage are serious complications. For the treatment of large volume BPH, open prostatectomy is still used in most hospitals, but it is more difficult to stop bleeding during open prostatectomy, more bleeding, and the surgery is more damaging to the surrounding tissues and organs, and postoperative complications such as bladder spasm and incision infection are likely to occur, and patients suffer more. The 2 micron laser treatment system is the latest technology used to treat BPH. This technology applies high-energy laser to vaporize and cut the prostate tissue, with good intraoperative hemostasis. Compared with traditional open surgery and transurethral electrodesis and transurethral laser vaporization, it has greater advantages: less bleeding, less trauma, less pain, less complications, higher safety, no trauma to the body surface, and faster postoperative recovery. It is especially advantageous for elderly and frail patients. It is a latest technology that combines the various advantages of current transurethral electrodes and transurethral laser vaporization surgery. The advantages of 2 micron laser treatment system: “vaporization + cutting” at the same time, “vaporization” at the same time “cutting”, both good hemostatic effect, but also can quickly cut off Tissue. The size of the tissue block is controlled by the operator, and the cut tissue is quickly flushed out of the body by the flushing solution without the use of a crusher, and the flushed tissue can be used for pathological analysis. The procedure is fast and bleeding is minimal. The green laser removes tissue by “vaporization”, the holmium laser removes tissue by “cutting”, and the 2 micron laser works by “vaporization + cutting” at the same time. The 2-micron laser works in a “vaporization + cutting” manner, which increases the speed of the procedure and reduces intraoperative bleeding significantly. Low cost of treatment. The 2-micron laser uses a bare optical fiber, which is reusable, and the rinse solution is normal saline, which significantly reduces the cost of treatment. The 2-micron laser is invisible, so there are no problems with the visible laser light affecting the camera system or the surgeon’s visual system during surgery. The protective goggles worn by the surgeon are also colorless, with good transparency and a very clear surgical field of view. The indications for 2 micron laser surgery system: benign prostatic hyperplasia and other diseases of the urinary system, such as bladder tumor removal, urethral scar removal, ureteral mass removal, pelvic ureteral junction stenosis incision, etc. At present, the urology department of our hospital also uses this technology in combination with endoluminal urology technology to minimally invasively treat other urological diseases, such as bladder tumor removal, urethral scar removal, ureteral mass removal, pelvic ureteral junction stenosis incision, etc. All of them have achieved good results and can save patients from the pain of open surgery.