The sensory bladder (1): an update on the different sensations described in the lower urinary tract and the physiological mechanisms behind them

AIMS: To give an update of the actual information on sensory function in the lower urinary tract (LUT). METHODS: We give an up-to-date review of the most modern and reasonable approach to the topic of physiological mechanisms involved in LUT sensory function and different sensations described in the LUT. RESULTS: Although the sensory function of the LUT is a main player in the function of continence and micturition, it has been dealt with rather superficially for many decades. More recently the interest in this function grows and does so rapidly, both in basic as in clinical research. Sensation depends on neurophysiologic mechanisms in several different nerves, receptors, and transmitters. This knowledge creates a better understanding of sensory symptoms. Different stimuli can elicit sensations in the LUT such as bladder filling, micturition, noxious stimuli, external stimuli. CONCLUSION: Sensation is the prerequisite of conscious bladder control and deserves full attention in the management of LUT dysfunction.