Pain arising from disorders of the viscera and somatic structures within the pelvis and perineum is a frequent cause of discomfort and disability, especially among women. Recently, blockade of the ganglion impar(ganglion of Walther) has been introduced as an alternative means of managing intractable perineal pain of sympathetic origin. The first report of interruption of the ganglion impar for relief of perineal pain appeared in 1990. We successfully treated a patient who had suffered from intermittent severe coccygodynia with ganglion impar block.