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Doctor insights on: I Have A Small Bump Under My Armpit

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I have a small bump in my armpit. What could this be?

I have a small bump in my armpit. What could this be?

See a doctor: It could be a tumor, cyst or lymph node reaction to infection or something else. You need to see a doctor to get a exam and find out the cause. ...Read more

Axilla (Definition)

Area of human body directly under the joint where the shoulder connects to the arm. It contains axillary vessels, brachial nerve plexus, lymph nodes & vessels, axillary ...Read more


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Hello, I have a small bump in my armpit. No it doesn't hurt. It is red and it is like a small bump. I got it after shaving my armipt. Thank you.

I'm Guessing: The best way to be sure would be to see and feel this lump, but, it sounds like you scratched the skin open and you have either an inflamed lymph node or possibly an infected skin sweat gland. If this continues to bother you for more than 5-7 days, please see your doctor for evaluation. ...Read more

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I have this bump under my armpit and it started off small and now it's like 3x bigger and hurts I don't know if it's a spider bite or a boil ?

I have this bump under my armpit and it started off small and now it's like 3x bigger and hurts I don't know if it's a spider bite or a boil ?

Boil: More likely a boil as this area of the body can be prone to them and a spider would usually have a tough time getting to your arm pit. See a health provider to have it evaluated and possibly drained. ...Read more

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I have a small bump above my armpit. It is tender to the touch. Could it be malignant? Possible cancer?

I have a small bump above my armpit. It is tender to the touch. Could it be malignant? Possible cancer?

Bump on armpit: If the bump is beneath your skin it's probably a reactive lymph node. Do you have any sort of issue going on with that arm, a rash or small wound? Even a small thing such as an ingrown hair can cause a lymph node to expand. Very unlikely it's cancer. Most cancers are painless early on. ...Read more

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I found a small sensitive red bump under my armpit and I thought it was a pimple but now there is a second one and my gland is swollen/sensitive?

Staph infection: Most likely you have staph infection which should be evaluated at your doctor's office or urgent care clinic for prompt treatment. These bumps, if left untreated evolve into abscesses, which often need to be lanced for drainage. Feel better! ...Read more

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I have 2 small hard bumps in my armpit. What could they be?

Boil/Swollen glan: It could be a boil or swollen glands but to make the proper diagnosis, one has to visualize and examine the lesions to determine the nature. See a PCP. ...Read more

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Feel small bump under left armpit. When i touch it it hurts. What could this be.

Feel small bump under left armpit.  When i touch it it hurts. What could this be.

Hidratenitis: Most likely you have a condition which is called hidratenitis. This usually resolves on its own, though some recommend discontinuing your antiperspirant to avoid further worsening of the symptoms. In some instances, it is severe enough to warrant antibiotic therapy, so i would recommend an evaluation with your physician if the symptoms do not resolve in a few days. ...Read more

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There's this small dark patch near my armpits which has been there for 8 months. Initially it was an itchy bump but now its just a mark. What is it?

Need to examine: It is not feasible to provide a meaningful opinion without taking additional history and examining the "patch". It would be useful discuss it with your doctor at the next visit. ...Read more