(1) The application of the "high-energy ultrasound knife" in the treatment of prostate hyperplasia has not been carried out for a long time, so its long-term efficacy has to be further observed and evaluated. It is also because of its development time is not long, some medical units and medical workers, from the economic interests of the starting point, do not strictly grasp the indications, too wide to expand the scope of its application, is very likely to cause adverse consequences.
(2) The application of "high-energy ultrasonic knife" for the treatment of prostate hyperplasia, prostate tissue coagulative necrosis, necrotic tissue is absorbed or disintegrated off, the local formation of scar. The formation of this scar is irregular, which can easily cause the narrowing and deformation of the urethra, leading to difficulty in urination. And once there is difficulty in urination, it is difficult to insert a urinary catheter to urinate due to the deformation of the urethra. Due to the irregular adhesions formed by the scar and residual tissues with the surrounding tissues, it greatly increases the difficulty of secondary surgery.