<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing excessive urination at night and sometimes have difficulty in retaining my urine, what could be the problem?  <response>: Based on your symptoms, it sounds like you may have Benign prostatic hyperplasia BPH. This is a common condition where the prostate gland enlarges and presses on the urethra leading to these symptoms. 