What is rectal tenesmus? Rectal Tenesmus or tenesmus is the condition in which there is continuous urge to pass the stool, even if your bowels are already empty. It may involve discomfort and straining during bowel movements, only to produce a small amount of stool. Symptoms of rectal tenesmus Symptoms of tenesmus include: Urgency to Tenesmus is a medical term used to describe the feeling of incomplete evacuation or the urge to defecate despite having an empty bowel. This uncomfortable and sometimes painful sensation can be caused by a variety of conditions, ranging from gastrointestinal disorders to infections. Understanding the potential causes, symptoms, and treatment options for tenesmus is essential for managing this distressing condition. This article will explore the common and less common causes of tenesmus, how ... Rectal tenesmus is a feeling of incomplete defecation, often painful and accompanied by straining. It can be caused by various conditions affecting the bowel, bladder, or pelvic organs, and requires treatment of the underlying disease. Tenesmus causes the feeling of needing to pass stool or urine even when your bowel or bladder is empty, often with cramping, straining, or pain. It can be caused by conditions like inflammatory bowel disease (IBD), infections, constipation, tumors, hemorrhoids, or radiation therapy.