I have a small lump in my right armpit.  It has been there since mid December and has not gone away.  It has not changed in size, and it is not from shaving.  I thought maybe it maybe a cyst, so I did have not gone to see my doctor. Since it is still there, should I be concerned?  What could it be?
Hi. A small persistent swelling in the armpit for such a long duration can be a lymph node / lipoma/ sebaceous cyst. The concern is about the diagnosis, so you should once consult a Surgeon to get a diagnosis. If this is a lipoma, you may not get it removed urgently. If this is a lymph node, we have to get a diagnosis by FNAC or excision. If sebaceous cyst, better to remove as early as possible to avoid getting an infection and its complications.