Hernia should not cause you to lose control of your bladder but if the Hernia does get into the bladder which is called either Inguinal Hernia or Femoral Hernia you can expect Urinary symptoms such as hesitancy, frequency, burning, frequent infections, bladder stones may also occur.
No hernia is totally a different case and it has not any relation with natural bladder control. YOu might be having urinary incontinence problems. For its treatment you must try out Flostat which is a proven medication for the urinary incontinence problems. It will help you to cure your problem.