Patients with early-stage prostate cancer do not exhibit obvious clinical symptoms. In the advanced stage of the disease, symptoms such as obstruction of the bladder outlet or the ureters can occur, manifesting as difficulty urinating, poor urine flow, frequent urination, hematuria, or purulent urine. Additionally, most prostate cancer patients are prone to multiple bone metastases, which cause pain at the sites of metastasis. This is also a common clinical symptom.