<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi, I just had open heart surgery on may 16 2012, after the surgery I noticed that when I urinate I have a burning sensation and it still exists today, also today I felt dizzy when I was walking and I just want to make sure if everything is ok or If I should contact my physician  <response>: Hello... There is no connection between Open-heart surgery with bladder. I think during your surgery, catheterization has been done that may cause burning sensation during urination due to Catheter induced urinary tract infection CACTI. Persistent Dizziness after By pass surgery is a significant symptom. First go for ECG for any arrhythmia. That is the most common cause of dizziness in heart patient. So my advice to consultant a Physician. Thank You 