Hello doctor, my father complains of burning sensation while passing urine . It's comes and goes of by itself. Attached report taken during that time. Now again he is complaining the same and burning at the back as well. We took master check up this January all his reports are normal,. Lft kft hba1c cbc urine routine all are normal. What can be done to resolve this issue? Do simple renal cysts cause this problem?