Frequent urination in advanced prostate cancer can happen because the enlarged prostate presses on the urinary passage or bladder, making it difficult to empty urine properly. Older patients may also develop urgency, weak urine flow, nighttime urination, burning, leakage, or incomplete bladder emptying. Infection, bladder irritation, medicines, or spread of the disease can sometimes worsen these symptoms further. Management usually focuses on improving comfort and maintaining urine flow safely. Doctors may use medicines that relax the prostate or reduce blockage symptoms. In some patients, catheter support, bladder drainage procedures, or adjustment of cancer treatment may help if urination becomes very difficult. Limiting caffeine late in the evening, avoiding excessive fluids before sleep, and monitoring urine output may also reduce nighttime discomfort. At 86 years of age, treatment decisions are often based on overall comfort, kidney function, pain control, mobility, and quality of life rather than aggressive intervention alone. Fever, blood in urine, severe lower abdominal pain, confusion, or inability to pass urine should be evaluated urgently.