The life expectancy of prostate cancer patients depends on the clinical stage at diagnosis, as well as the patient's sensitivity to various treatments such as endocrine therapy, chemotherapy, and radiotherapy. Patients diagnosed at earlier stages who are more responsive to treatment generally have better treatment outcomes and, consequently, a longer survival period compared to those who are diagnosed at later stages and have poor responses to treatment. Overall, prostate cancer patients tend to have a relatively long disease course, and the prognosis is generally good. Even patients with advanced prostate cancer exhibiting extensive bone metastasis can survive several years due to the effectiveness of endocrine treatments. The disease itself progresses slowly, so the prognosis for this type of cancer is comparatively favorable.