A 36-year female complaints of abdominal pain & constipation since 5 years. She has on & off rectal bleed when she tries to defecate forcefully. The most probable diagnosis is:
Ulcerative colitis
Crohn's disease
Tuberculous intestine
Irritable bowel syndrome
The findings are consistent with irritable bowel syndrome. Crohn's disease would typically have perianal fistulae while ulcerative colitis has periods of acute disease and quiescent periods: the acute periods are severe and may lead to significant impairement.