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What Causes A Small Red Raised White Pimple In The Armpit?

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Posted on Sat, 21 May 2016
Question: Lump the size of a raw pea in my armpit showed up overnight. Red with small raised white pimple. No pain or itching. I live in central FL. Insect bite?
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Answered by Dr. T Chandrakant (30 minutes later)
Brief Answer:
Most probably a boil.

Detailed Answer:
Hi.
Thanks for your query.
Noted your history of a lump of the size of a raw pea in armpit which showed up overnight, It is red with small raised white pimple without pain or itching. Lives in central FL. Wants to whether it is an insect bite.
The commonest reason of such a lump in the armpit is usually an infected boil/sebaceous cyst.
Insect bit is most uncommon in this area.
Since it has got a small raised white pimple, there is not much of a pressure within and hence no pain and can open up any time to give your relief.
Insect bite would have caused itching.

I hope this answers your query, please feel free to ask for further relevant queries if you feel that there is a gap of communication.

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Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Dr. T Chandrakant

General Surgeon

Practicing since :1984

Answered : 19781 Questions

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What Causes A Small Red Raised White Pimple In The Armpit?

Brief Answer: Most probably a boil. Detailed Answer: Hi. Thanks for your query. Noted your history of a lump of the size of a raw pea in armpit which showed up overnight, It is red with small raised white pimple without pain or itching. Lives in central FL. Wants to whether it is an insect bite. The commonest reason of such a lump in the armpit is usually an infected boil/sebaceous cyst. Insect bit is most uncommon in this area. Since it has got a small raised white pimple, there is not much of a pressure within and hence no pain and can open up any time to give your relief. Insect bite would have caused itching. I hope this answers your query, please feel free to ask for further relevant queries if you feel that there is a gap of communication.