Home HealthTopics Health Centers Reference Library Research
Join us on Facebook Join us on Facebook Share on Facebook

Breast Cancer

Knot under right arm



I have a small knot under my Right arm that has been there for about two weeks.Ive had alot of Benign cysts under my left arm before.Never had none under the other arm before. I know this is not a cyst because its not sore at all.What do you think .Should i be concerned?


You should certainly get this checked out.  It may be nothing, but breast tissue does extend under the arm and lymph nodes are present under the arm.  Cancer can occur in this site.

For more information:

Go to the Breast Cancer health topic, where you can:

Response by:

Doreen M Agnese, MD Doreen M Agnese, MD
Clinical Associate Professor of Surgery and Internal Medicine
College of Medicine
The Ohio State University