Brief Answer: Liver function test, Ultrasound abdomen. Detailed Answer: Hello, I have gone through your query and understand your concern. There are plenty of causes for dull pain under the right rib cage. some common causes are gall bladder diseases such as stones or infection, liver disease such as hepatitis, gastric ulcer, Gastritis etc. Even Musclo skeletal pain in rib can be a cause. If you are my patient, i would like to take the thorough history following examination. i would look for any tenderness under the rib cage and any liver or other organ enlargement. Then i would refer you for further investigations like 1. Liver function test to rule out any liver disease 2. Ultrasound abdomen to rule out gall stones 3. X-Ray Chest and Abdomen If all these investigations and findings are normal, then i would prescribe proton pump inhibitors like Omeprazole for 10 days or a week. So please get examined by your primary care physician and do investigations i mentioned above. Because with out physical examination and investigation, it is very difficult to identify the cause for your pain. Hope this helps. Please write back for further queries. Wishing you good health.

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