Conversation: The conversation between human and AI assistant.
[|Human|] I have a large lump in my lower right abdomen , just to the right of a very long appendectomy scar that is almost 40 years old. I was experiencing acute pain in the upper right abdomen, below the rib cage. The pain gradually went away and I noticed the lump yesterday. It s more noticeable when I m standing, tender but not painful.
[|AI|]  Hello! Thank you for the query. This lump is most likely a hernia in the scar post appendectomy. You can perform simple test. Put your hand in the lump area while standing and try to cough. If this lump is moving when coughing, the hernia it is. Upper right abdominal pain is most likely caused by gallstones. It can also give pain radiating to the back, nausea, vomiting, especially after a meal. It is advisable to have abdominal ultrasound performed and if hernia will be confirmed, surgery is advisable. Hope this will help. Regards.