<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing impotence and involuntary urination lately. Also, I have symptoms of bladder issues, and Ive been urinating excessively at night. What could be wrong with me?  <response>: Based on your symptoms, its possible that you may have prostate cancer. I recommend scheduling a prostate exam as soon as possible to determine the cause of your symptoms. 