Abdominal pain on the right side?

The right side of your abdomen has several organs. The lower right side is where your appendix is, so appendicitis is a possibility. Your liver and gallbladder are also on the right side, so liver disease or gallstones could be a possibility as well. The first loop of your small intestine (the duodenum) can sometimes be towards the right side, so there could be an issue there like a duodenal ulcer. Really there is a large number of things it could be. Keep in mind that abdominal pain has a tendency to be "referred". This means that if you have a problem with something on the left side of your abdomen, you may actually feel the pain on the right side or in the middle. The best thing to do is to see a doctor because only he or she can really diagnose you.