Not necessarily, treatment options need to be patient-specific.
This is mainly because, compared to other malignancies, prostate cancer has a relatively slow progression, and some patients do not even develop it for life.
Therefore, not all patients need immediate treatment. For some patients with low-risk prostate cancer (e.g., PSA less than 10 ng/ml, low pathologic tumor grade), or with a short life expectancy, and in patients where the complications from treatment may outweigh the benefits of treatment, close follow-up observation without immediate treatment may be indicated. However, the final treatment plan will need to be determined by the physician on a patient-by-patient basis.