If you have pain in your lower right abdomen, it could mean trouble with your appendix, such as appendicitis or, rarely, appendix cancer
You have some big organs on the upper right side of your abdomen, including your liver and right kidney, as well as your gallbladder. Serious causes of pain in this area include:
Hepatitis, including alcoholic hepatitis, toxic hepatitis, viral hepatitis, metabolic hepatitis, and autoimmune hepatitis
Gallstones
Liver disease, including liver cancer
Gallbladder cancer
Inflammation of your gallbladder, called cholecystitis
Kidney infection
Kidney stones
Duodenal ulcer
Large bowel obstruction
