This study will target patients who have received a histopathological diagnosis of prostate
cancer and who are undergoing treatment in various forms, including active PSA surveillance,
surgical treatment, radiotherapy, endocrine therapy, and chemotherapy. The study will survey
information about the patient at time of diagnosis, clinical staging, details of initial
treatment, status of disease progression, and prognosis at the end point of the study. The
purpose of the study is to clarify distribution of staging, the actual status of treatment
choices and treatment outcomes.