Bladder Botox is an office-based procedure that involves inserting a tiny camera with a needle the size of a hair follicle through the numbed urethra, a tube that connects to the bladder.

"Using a small camera and a scope, we fill the bladder up with water or saline, and then we take a very tiny needle and inject the Botox," Ellerkmann said. Doctors make about 20 injections into ...