Emerging in the last decades, sacral neuromodulation remains an underknown therapy in the general population and even in the medical field. It has proven itself in the treatment of urinary dysfunctions, such as overactive bladder syndrome and chronic non-obstructive urinary retention. Numerous applications are currently being validated and the innovations made open up encouraging prospects. This article aims to introduce the modalities of the intervention and to present the established and future medical indications of sacral neuromodulation.