Tenesmus is the sensation that one has to pass stools, even though one's bowels are vacant. It involves weakening, aches, and cramping. It usually arises due to inflammatory disorders of the bowels. Such diseases are induced by an infection or different ailments.
Tenesmus: The Constant Urge to Defecate
Tenesmus is a constant urge to defecate. It is an uncomfortable feeling that a person experiences, even when the bowel is empty.