Compared to radical prostate cancer surgery, the complications of prostate cancer particle implantation are relatively less, and the chance of urinary difficulty, urinary incontinence and sexual dysfunction is lower than that of radical prostate cancer surgery. Generally speaking, the complications of prostate cancer particle implantation include the following two aspects: 1. Recent complications: After prostate cancer particle implantation, because of its radioactive characteristics, there is radioactive damage around the prostate gland, causing symptoms such as frequent urination, urgent urination, painful urination, difficulty in urination and increased nocturia; if the rectum is damaged, it can cause proctitis, resulting in poor defecation, such as diarrhea and constipation; damage to the genital nerve is relatively rare. The damage to the genital nerve is relatively rare, mainly manifested as sexual dysfunction, such as erectile dysfunction; 2. Long-term complications: mainly urinary incontinence, difficulty in urination, urinary retention, etc., whose incidence is low.