A 30 year old lady complains of intermittent diarrhea, chronic abdominal and pelvic pain and tenesmus. Sometimes she notices blood in her stool. Select the most likely cause leading to her symptoms?

The key is A. Inflammatory bowel disease. [In diverticulosis there is usually constipation and diarrhea is less common. But in IBD there is usually diarrhea. Occasional blood in stool excludes irritable bowel disease. Adenomyosis can cause menstrual cramps, lower abdominal pressure, and bloating before menstrual periods and can result in heavy periods. UTI does not present like this. Answer is IBD (inflammatory bowel disease)].