About 66 million Europeans and 43 million Americans suffer from overactive bladder (OAB), which causes sudden, involuntary contractions of the muscle in the wall of the urinary bladder.
The first line of therapy is prescription medications, though they can cause unpleasant side effects. Another treatment involves surgically implanting an electrical stimulation device to disrupt the pathway of the tibial nerve, but patients may experience pain, the units may fail, and repeat surgeries are needed to replace the battery.
