I'm a little confused about flank pain I'm experiencing. For the past couple of weeks I've been experiencing some bothersome pain - left side of my back. Not bad, but bothersome and difficult to sit still. I read that this is usually associated with advanced bladder cancer. My tumor us relatively small; 2cm, diagnosed last week. During cystoscopy the doctor expressed some concern about the size of the flora, that this could indicate deeper roots, but we won't know until the pathology comes back a couple of weeks after the TURBT, which us next Thursday the 18th. CT with contrast, which led to my initial diagnosis shows no spread, lymphs clear as are the surrounding tissue and kidneys, except for a small cyst on top of my left kidney which was found a couple of years ago during an ultrasound. So just wondering the experience of others in this forum with flank pain.