Conversation: The conversation between human and AI assistant.
[|Human|] I believe I have a hernia in my stomach.  A month or so ago I laid on my stomach (at night ) and felt a formation by my naval.  Its hard and the pain demanded I turn over.  Well the holidays came up so I delayed going to the doctor.  Then in Feb. I had to have openheart surgery, a triple bypass. That prevented me from laying on my stomach so the mass was forgotten until last night.  I turned over and there it was, bigger and harder than before. Could it be a hernia?
[|AI|]  Hello, Thanks for posting your query, From your description, if the bulge is retractable or reducible then the chances of it being an umbilical hernia is high. As you described that it usually occurs when you lay on your stomach, meaning that your abdominal are highly tensed/contracted and if there is bridge on your abdominal wall, that will force intestines to bulge through the orifice hence you feeling it on your navel. It will be best if you could pay a visit to a doctor who can take a closer look at it to determine exactly what it is. Other possibilities are intra-abdominal benign tumors. Abdominal scan could help determine the nature of the bulge. Hope this helps and wish you the best