Small lump left side under ribs.breast cancer other side three years ago should I be concerned about lump?

It doesn't have to be something serious, BUT in your case ( breast cancer three years ago) I would certainly go to a doctor! . Just for sure.. They got it right! You need (MORE)

What is under your rib cage on the left side?

I looked it up and it appears to be that your stomach is on the left side, as well as your spleen. If you are talking about right in front it is your stomach, near the back or (MORE)