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Dr. Andrew Rynne
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Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Painful Lump In The Armpit?

I have a large painful lump in my armpit. These lumps come and go. I have had some test ran on one of the lumps to see if it could possibly be cancer. Everything came back normal. What could be causing these lumps? I now have one that is huge and very painful.
posted on Tue, 14 Oct 2014
Twitter Tue, 23 Dec 2014 Answered on
Twitter Tue, 23 Dec 2014 Last reviewed on
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General Surgeon,  's  Response
Hi, it is most likely lymph node swelling in the armpits or could also be infective swellings due to sweat gland blockage. If it is painful and red then the latter is more likely.
I suggest you see your GP who can examine you and most likely you would require a course of antibiotics and maybe drainage if an abscess has formed.
If he rules out a sweat gland abscess then an FNAC would be required to see what is causing the lump. FNAC is a test in which a small needle is inserted into the lump and some cells are extracted which are then viewed under a microscope to see what is the nature of the lump.
Do not worry but you should get this done early.
Take care,
Dr Rishi, New Delhi, India.
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What Causes Painful Lump In The Armpit?

Hi, it is most likely lymph node swelling in the armpits or could also be infective swellings due to sweat gland blockage. If it is painful and red then the latter is more likely. I suggest you see your GP who can examine you and most likely you would require a course of antibiotics and maybe drainage if an abscess has formed. If he rules out a sweat gland abscess then an FNAC would be required to see what is causing the lump. FNAC is a test in which a small needle is inserted into the lump and some cells are extracted which are then viewed under a microscope to see what is the nature of the lump. Do not worry but you should get this done early. Take care, Dr Rishi, New Delhi, India.