Abdominal pain is tricky, because it doesn't always hurt right where the problem is. The appendix is on the lower right, but I've seem people with appendicitis who had pain just under their rib cage.
That said, 4 inches to the right could be colon, small intestine, liver. Or it could be referred pain from the left colon. If you're unsure after you talk to the doctor, consider asking for an upper GI evaluation before surgery.
Ulcerative colitis forum co-moderator
Moderate to severe left-sided UC diagnosed 2001.
Flared for 5 years, finally in remission with Remicade since March 2006.
Avascular necrosis in both shoulders is my "forever" gift from steroids.
Colazal, Remicade, Nature's Way Primadophilus Reuteri.
"My life is an ongoing medical adventure"