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A 36-year-old female asked:

I have a swollen lymph node on my under arm, maybe the size of a small grape. i have bad allergies and started my cycle, will that cause the swelling?

2 doctor answers6 doctors weighed in
Dr. Jeffrey Rosch
Allergy and Immunology 49 years experience
Not likely related: Neither your "allergies" or you menses are likely causes of an auxiliary lymph node. Have your pcp assess as to any further evaluation indicated.
Dr. Michael Miller
Wound care 36 years experience
Monitoring Centers: Lymphatic system absorbs/carries things too big to go into the arteries/veins like bacteria eaten by white cells and digested food. Lymph nodes "taste" the lymph for anything bad like bacteria/viruses/cancers, etc. When it detects a problem, it alerts the immune system and your body reacts. They enlarge in response to the inflammation they create when they react. They shrink when all is well.

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Last updated Oct 5, 2013

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