 - Women 18 years old or over with diagnosed Fowlers syndrome and abnormal sphincter function i.e. raised UPP MUCP92 - patient age in years cmH2O Edwards and Malvern 1974, increased sphincter volumeif measured greater than 1.8 cm3 and if voiding, evidence of obstructed outflow. Sphincter EMG will be recorded at the time of injection. 