A member asked:

What would cause a lump in the underarm?

A doctor has provided 1 answer
Dr. Michael Miller answered

Specializes in Wound care

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.

Answered 8/14/2013

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Related Questions

A member asked:

Any reason why i might have a sore lump in my armpit?

A doctor has provided 1 answer