habit that many of us have.Different complications in the urinary tract may arise, if we leave the bladder full of urine for an extended time: one example of such complications is Hypertrophy of detrusor muscle, which may lead to formation of diverticula. Another example which is caused by chronic back pressure on kidneys is Hydronephrosis (increase of urine pressure in kidneys), ultimately resulting in renal dysfunction and even the need for dialysis.