tenesmus tenesmus tenesmus may refer to: rectal tenesmus – a clinical symptom, where there is a feeling of constantly needing to pass stools, despite an empty colon. when the word "tenesmus" is used by itself, this is usually what is meant. vesical tenesmus – a clinical symptom, where there is a feeling of constantly needing to urinate, despite an empty bladder. this article is issued from wikipedia. the text is licensed under creative commons - attribution - sharealike. additional terms may apply for the media files.