What does a lump on the left bicep indicate?
Patient: Hello.  I am 42 yrs old, 6'2", 172 lbs.  I have had this small pea size lump under the skin on my left bicep for years now.  I have noticed, as my bicep muscle has gotten smaller due to not working out as much anymore, that the small lump has begun to hurt when it is touched or rubbed on by my backpack strap or any other tight clothing etc.  It almost feels like there is a jagged edge to it and it is connected to my muscle somehow.  Thoughts? Doctor: Hello,The possible issue for a lump on biceps is soft tissue lesion as sebaceous cyst or lipoma. You need definite treatment after clinical confirmation of the diagnosis.Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Bhagyesh V. Patel