The staging of prostate cancer mainly relies on puncture biopsy of the prostate and MRI of the prostate. Puncture biopsy is to obtain tissue specimens of prostate cancer for pathologic tests, to clarify the degree of invasion of prostate cancer cells to make a score of the prostate, with a total score of 10 points, and the higher the score is, the later the staging is. Imaging examination mainly relies on MRI of the prostate gland, and a puncture biopsy is needed to confirm the later stage of prostate cancer. Therefore, to accurately stage prostate cancer, there must be a puncture biopsy of the prostate gland and MRI of the prostate gland to determine the stage of prostate cancer, both of which need to be evaluated by a professional doctor.