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Doctor insights on: Lump Under Armpit Under Skin

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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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Hi there, I get reoccurring painful under the skin lumps in my armpits, what could it be?

Hi there, I get reoccurring painful under the skin lumps in my armpits, what could it be?

Axillary lumps: Lumps in your axillary (arm pit) areas can be axillary abscesses, infected hair follicles (especially if shaving, etc.), possible inflamed lymph nodes, etc....So it is best to get an evaluation to get the proper diagnoses, so your painful lumps can be treated appropriately. Best wishes. ...Read more

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I have a lump under my skin in left armpit. What is it? It is painful and I just started noticing it this past week.

I have a lump under my skin in left armpit. What is it? It is painful and I just started noticing it this past week.

Without: Without a clinical exam and review of your medical history it is difficult to give you an answer, but it may be a reactive lymphnode but there are other things that need to be ruled out. You should schedule an evaluation by you physician as soon as reasonable possible to examine this. ...Read more

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I have a small lump under skin in right armpit, I have had it about 1 month, should I get it checked or am I just being silly?

I have a small lump under skin in right armpit, I have had it about 1 month, should I get it checked or am I just being silly?

Yes: Get it "checked out" You are not silly! Chances are its a benign SEBACEOUS cyst (Very common underarms!) NEVERTHELESS it should be checked out at your age!

Hope this helps!
Dr Z ...Read more

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19 yr female. Painful, small, lump under the surface of the skin in armpit. Has been recurring. Lasts for a little over a week, comes every couple mont?

19 yr female. Painful, small, lump under the surface of the skin in armpit. Has been recurring. Lasts for a little over a week, comes every couple mont?

Possible staph: Many causes of painful inflammatory conditions of the intertriginous zones of the body (e.g. skin folds). One major cause is recurrent colonization with staph (bacteria) due in part to the local environment which is ideal for bacterial growth. If you are shaving your armpits, you may be introduction bacteria by using or re-using razors which cause trauma of the skin which can lead to "bumps". ...Read more

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I have hard, painful lumps under my skin in the armpit. What should we do?

I have hard, painful lumps under my skin in the armpit. What should we do?

Possible Infection: If you are shaving your underarm hair, it is possible that folliculitis has developed. Reusing a shaving blade that is stored in the shower increases this likelihood. Consult with a physician for the accurate diagnosis and appropriate treatment. ...Read more

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I keep getting small lumps that are painful under my armpit skin. I had 1 first then next day 3 then next day 7!

I keep getting small lumps that are painful under my armpit skin. I had 1 first then next day 3 then next day 7!

Have your doctor: Take a look at these as it is possible they represent hydradenitis which is an inflammation/infection of the sweat glands in the skin. In the meantime warm compresses, no shaving and no deodorant. ...Read more

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Large lump under armpit skin. Had mammogram 9mo ago. Should I repeat?

Large lump under armpit skin. Had mammogram 9mo ago. Should I repeat?

No: Large axillary nodes can be from many causes other than breast cancer. Infections, lymphoma, and breast cancer are a few causes. Large axillary ln should be examined by your doctor and if clinically suspicious for neoplasm they should be biopsied. Repeat mammography may or may not be needed. ...Read more

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I have two lumps next to each other in my left armpit, under the skin, no head pea size and they really hurt should I be concerned?

I have two lumps next to each other in my left armpit, under the skin, no head pea size and they really hurt should I be concerned?

Have them checked: Tender axillary nodes can be a sign of infection such as a virus but if they are only on one side, you need to see a doctor to rule a more serious cause, . ...Read more

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Hello I woke up this morning and was stretching I reached towards my right armpit and felt a little painless lump underneath my skin.?

Hello I woke up this morning and was stretching I reached towards my right armpit and felt a little painless lump underneath my skin.?

Lymph nodes?: This is most likely a normal lymph node. If it becomes tender or it is increasing in size I would see your doctor. If it moves around easily under the skin it probably a lymph node. If it seems to be stuck down and immobile this would be more concerning for a malignant process. ...Read more

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I have a lump under my right armpit that hurts when I wear my bra or anything touches it, it's solid and the size of a dime and it's skin colour?

I have a lump under my right armpit that hurts when I wear my bra or anything touches it, it's solid and the size of a dime and it's skin colour?

Needs evaluation: Lumps in the armpit can be cysts or enlarged lymph nodes. Only a clinical examination can determine the cause or the treatment. Suggest you see your primary care soon. Thanks for trusting HealthTap! ...Read more

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Painless lump under the skin of my armpit. I can feel it on the surface of the skin. It bleeds when I poked a hole. Looks like regular skin but darker?

Lump in armpit: If you shave or wax there, it may be an ingrown hair that has caused a small collection of oil/skin that you can feel, like a pimple. It is common in that location. Try soaking it for 20 minutes or so, a couple times a day, to see if it comes to a head so you can get it to open up and drain. If it is red, tender, a doctor can open it for you. ...Read more

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I have found a marble sized lump in my left boob. Close to the armpit but not close to the skin. I am 22 what could this be?

I have found a marble sized lump in my left boob. Close to the armpit but not close to the skin. I am 22 what could this be?

Many possibilities: Fortunately, at the age of 22, breast cancer is fairly rare. With that in mind, there are a number of benign causes of a breast lump, including cysts, fibroadenoma, fibrocystic breasts, lipoma, &infection. Your doctor will likely take these possibilities, along with your family history or other risk factors, into consideration when you see him/her. Which you should do, just to be safe. ...Read more

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I have a lump under my left armpit, like under the skin, and its a constant pain, what is this?

I have a lump under my left armpit, like under the skin, and its a constant pain, what is this?

Possibilities: It could be an inflamed lymph node. It could be cancer. Get it examined by your doctor to find out what it is, not what it might be. :). ...Read more

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These are my symptoms: vaginal itching and lumps, armpit lumps, and skin issues. What could be wrong?

These are my symptoms: vaginal itching and lumps, armpit lumps, and skin issues. What could be wrong?

Not sure: This can't be diagnosed with the information that is available. A history, physical examination & other studies may be needed to determine cause/causes. ...Read more

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I have a lump on my armpit it feels like a little ball or marble under the skin. I have had it for months it was small but now bigger and painful.

I have a lump on my armpit it feels like a little ball or marble under the skin. I have had it for months it was small but now bigger and painful.

Lymph node: You could have an infected lymph node or infected sebaceous cyst. Either way sounds lie you need to see a medical doctor. Keep warm moist compresses on area and use ibuprofen until you can get in. ...Read more

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24yr old male around190pounds-5^9height. Discovered a pea sized lump in both armpits (not on outer skin-layer- DEEP inside armpit! What's the cause??

24yr old male around190pounds-5^9height. Discovered a pea sized lump in both armpits (not on outer skin-layer- DEEP inside armpit! What's the cause??

Lymph nodes: Lymph nodes are specialized structures in the body that filter lymph fluid of harmful pathogens, cancer cells, and cellular waste. These filter lymph from different parts of the body and can become enlarged depending on what is going on in that part of the body. If it does not resolve, get it checked by a physician ...Read more

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I have a lump under the skin of my right armpit. I first felt it 6 months ago but it didn't pain then but now it does when pressed. Is it dangerous?

I have a lump under the skin of my right armpit. I first felt it 6 months ago but it didn't pain then but now it does when pressed. Is it dangerous?

Possibly: Lumps in the armpit that do not go away need further medical evaluation.

It may be a cyst or other benign cause, but the lymph nodes also are in this area and it could be a sign of a lymph node cancer.

Get it checked out to be sure. ...Read more

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Hard pea size lump under my armpit have stayed the same over 10 years, just noticed became slightly bigger but no pain, its moveable under the skin.

Sounds like a cyst: Sounds like a cyst. These can easily be removed in a local outpatient setting. Consult with a dermatologist and they can explain to you what it take to get it removed. Good luck. Dr. Kosari ...Read more