Final answer:
The most common site for pain associated with irritable bowel syndrome is the left lower quadrant.
Step-by-step explanation:
The most common site for pain associated with irritable bowel syndrome (IBS) is a. the left lower quadrant. To facilitate clear communication regarding the location of a patient's abdominal discomfort or other concerns, healthcare professionals frequently segment the abdomen into four quadrants. The left lower quadrant is often the site where people with IBS experience pain, although this can vary from person to person.