As mentioned earlier, an experienced urologist will make full use of PSA, anal examinations and transrectal prostate ultrasound to evaluate the need for further, relatively more complex, expensive but more accurate tests to diagnose prostate cancer as accurately as possible, taking into account various factors such as the patient’s symptoms. Prostate MRI is one of the most widely used of these further tests, and is more sensitive than CT for the diagnosis of early prostate cancer. In addition, MRI is able to detect differences in the metabolism of citrate, choline and creatinine in prostate cancer tissue showing different wave spectral lines than in prostate hyperplasia and normal tissue, further aiding in the diagnosis of prostate cancer. In addition to the early diagnosis of prostate cancer, MRI of the prostate is also quite important for the clinical staging of prostate cancer. It can show the integrity of the prostate envelope, whether it invades the surrounding tissues and organs of the prostate, as well as the invasion of the pelvic lymph nodes and bone metastases. Accurate staging is essential for selecting a more appropriate treatment plan for the patient. Some patients do not understand why an MRI is needed after a biopsy. It actually stems from this.