Not likely: Infection or inflammation of anytime can produce a painful lump. This seems to be the case with your lump under the arm. The fact it is now painless indicates that acute problem has settled down. But watch its size...Which should get smaller and not be increasing at all.If it is increasing in size, then you need to see a doctor for further examination to find out its nature. Cancer is unlikely rig.
Answered 8/30/2016
5k views
See below: Any persistent swelling should be removed and examined pathologically for an answer.
Answered 8/30/2016
5k views
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