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Breast Cancer

Swelling under the left arm



i have swelling under my left arm it`s only a little painful when you push on it sometimes. i had it for about 2 months now.i go for a mammagram aug . last years mammagram read normal. what could this be.i`m 46


Hard to know for sure, and I certainly think that this should be evaluated.  It could be a lymph node.  Lymph node enlargement can occur after an infection or trauma to the arm.  It could also be a sign of cancer.

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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