Minimally invasive surgery for prostate enlargement, most of which are general transurethral prostate laser surgeries, also carries certain dangers, such as postoperative infections, bleeding, and urethral sphincter injuries. 1. Post-operative infection: there is a possibility of secondary urinary tract infection after surgery, such as urethritis, cystitis and other infectious diseases, causing symptoms such as frequent urination, urinary urgency and painful urination. 2. Bleeding: there may be bleeding from the wound after the surgery, causing symptoms such as blood in the urine, blood clots or even hematuria. 3. Urethral rupture muscle injury: If the urethral sphincter muscle is injured during the surgery, it may cause symptoms such as urinary incontinence. There may be other dangers of minimally invasive surgery for prostate enlargement, and you need to go to a regular hospital for examination and treatment.