Overactive bladder (OAB) syndrome means that the bladder, which is a bag made of muscle, squeezes (contracts) suddenly without you having control and when the bladder is not full. OAB syndrome is a common condition where no cause can be found for the repeated and uncontrolled bladder contractions. (For example, it is not due to a urine infection or an enlarged prostate gland.)
This is a companion discussion topic for the original article at https://patient.info/womens-health/lower-urinary-tract-symptoms-in-women-luts/overactive-bladder-syndrome-oab