<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, Ive been experiencing frequent urination and sometimes I struggle to retain it. Ive also had involuntary urination, and I noticed blood in my urine. Whats wrong with me?  <response>: Based on your symptoms, it sounds like you may have prostate cancer. I recommend we run some tests to confirm the diagnosis and discuss a treatment plan moving forward. 