The diagnostic and therapeutic criteria of the common coccygodynia is presented and related to the authors personal experience. A special attention is given to the description of a special „dynamic“ X ray technique of the coccyx, developed by the author.A bony anomaly „spicula“ on the dorsal aspect of the coccyx is described. This can be found in 15 % of subjects and may be ralated to the painful coccyx.

        Key words: coccygodynia