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small lump under arm

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i have a small lump under my arm. It has been there for about 3 months and it is rock hard. It is a about the size of a pea. Should i be worried and have it checked out by the family doc.

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replied January 14th, 2008
Cancers Answer A3502
The manifestation of a lump under the armpit could be anything including: a hair root infection, an infected cyst, a sweat gland infection, a swollen lymph node, etc. A more precise diagnose can be given only after a physical examination (inspection and palpation) by your family doctor.

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