Suggest treatment for bump under arm with green stuff
Patient: Every now and again I get a round bump under my arm.  I can feel the whole thing...it is completely round and is tender to the touch.  It will come and stay for a week then leave for a couple weeks or a couple months but always comes back.  This morning I noticed it was much closer to the surface of my skin so I gently squeezed it and green stuff came out.  Is this something I should see my primary doctor for?  Is it urgent? Doctor: It is most likely to be a sebaceous cyst. You should have it removed by a small operation if it is bothering you. Take care.