Radical prostatectomy is the best treatment option for patients with early and some intermediate stage prostate cancer, but not all patients who undergo this procedure are completely cured, and a significant number of patients will experience postoperative recurrence or metastasis.
This is because some patients have developed adjacent lymph node metastases or micro-metastases prior to radical prostate cancer surgery, and even some patients have underestimated tumor stage and positive surgical margins.
So, for these patients with positive margins, postoperative endocrine therapy or radiotherapy may improve the cure rate; for those with high-risk prostate cancer or in cases where the tumor is found to have invaded the envelope intraoperatively, postoperative adjuvant endocrine therapy may improve survival and reduce recurrence.