For patients with early stage prostate cancer, radical retropubic prostatectomy can indeed achieve the goal of radical cure, completely remove the tumor from the body and make the patient’s 10-year tumor-free survival rate reach over 90%, which is quite satisfactory in the surgical treatment of malignant tumors. The most important thing is that the prostate cancer can be cured by radical prostatectomy, and for many patients whose tumors have crossed the prostate envelope, the disease can be cured as long as their tumors are more differentiated and the doctor removes the prostate more thoroughly. However, when the cancer is poorly differentiated or has invaded the seminal vesicle gland, bladder neck, etc., the chances of cure are much less. Johns Hopkins Hospital in the United States once surveyed nearly 1,000 patients who underwent radical surgery for retropubic prostate cancer, and the results showed that only 30% of the patients had tumor recurrence after 10 years. In these individuals, the 10-year cancer-free survival rate was 90 percent for patients whose tumors did not invade the pericardium. Even if the prostate cancer had crossed the pericardium, the tumor-free survival rate at 8 years after surgery was 100% as long as the margins were negative and the Gleason score was not higher than 6. However, when tumors cross the prostate envelope and have positive margins, only 50% of patients have no signs of tumor recurrence 8 years after surgery, even if their Gleason score is not higher than 6.