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I am a male with a painful lump under my armpit that comes and goes. What is this?

1 doctor weighed in
Dr. Adam Mamelak
Dermatology

In brief: Lump in armpit

What you are describing sounds like a sebaceous cyst.
A cyst is basically a pocket that forms in skin. These cysts can become inflammed, enlarge and become tender from time to time. However, it is difficult to definitely say what this lesion is without examing it. I recommend you see your doctor to confirm this diagnosis and see what the best treatment is.

In brief: Lump in armpit

What you are describing sounds like a sebaceous cyst.
A cyst is basically a pocket that forms in skin. These cysts can become inflammed, enlarge and become tender from time to time. However, it is difficult to definitely say what this lesion is without examing it. I recommend you see your doctor to confirm this diagnosis and see what the best treatment is.
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