Definition of Tenesmus:

Tenesmus is the constant feeling of the need to empty the bowels, accompanied by pain, cramping, and involuntary straining efforts.

Considerations:

Tenesmus is generally associated with inflammatory diseases of the bowels, which may be caused by an infection or by other conditions. Tenesmus is characterized by a sensation of needing to pass stool, accompanied by pain, cramping, and straining. Despite straining, little stool is passed.

Common Causes:

• Inflammatory bowel disease (IBD)
• Crohn's disease
• Ulcerative colitis
• Anorectal abscess
• Infectious colitis (infection of the colon)
• Colorectal cancer or tumors
• Radiation proctitis or colitis (inflammation of the colon or rectum from radiation)