Prostate cancer is a common malignant tumor in the urinary system. The late-stage symptoms of prostate cancer include the following aspects: Many patients experience urinary symptoms such as frequent urination, urgent urination, and painful urination due to tumor obstruction. Additionally, some patients experience slow urination, difficulty urinating, and even severe urinary retention. A few patients may have painless or painful hematuria. Some patients, due to tumor compression or invasion, experience enlargement and pain of the inguinal lymph nodes, as well as swelling of the lower limbs. Some patients develop bone metastases, clinically manifesting as pain, reduced sensation, or paralysis. Some patients with prostate cancer develop pulmonary metastases, leading to clinical respiratory symptoms such as cough, chest tightness, breathlessness, and difficulty breathing.