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Doctor insights on: Hard Pea Sized Lump In Armpit

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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.

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

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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I'm a 20 year old female, and have noticed a hard, painless pea-sized lump in my armpit. It's been there for two years or so now, what should I do?

I'm a 20 year old female, and have noticed a hard, painless pea-sized lump in my armpit. It's been there for two years or so now, what should I do?

Lump: What you describe does not sound to be dangerous, not anything like cancer, since it has been asymptomatic and stable for 2 years. If you want to have it removed you can see a general surgeon or a family physician, most of whom are able to do simple excisions. The doctor may then advise to send it for a pathology report to know specifically what it is. ...Read more

Dr. Peter Lio Dr. Lio
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Small, not quite pea size hard lump underneath right armpit. Does not hurt, does not form visible bump, no color. Had over a year. Cyst, ingrown hair?

Dr. Peter Lio Dr. Lio
1 doctor agreed:
Small, not quite pea size hard lump underneath right armpit. Does not hurt, does not form visible bump, no color. Had over a year. Cyst, ingrown hair?

Probably a cyst: Cysts are small, firm bumps under the skin that are filled with keratin. When squeezed, some will produce the keratin which is white, cheesy and sometimes stinky. If it is not causing problems or growing, we tend to leave them alone, but it is important for your doctor to confirm the diagnosis. Sometimes, if it is not clearly a cyst, we can biopsy the spot to be sure. ...Read more

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Pea sized lump in armpit. How do I remove this?

Pea sized lump in armpit. How do I remove this?

Surgical excision: Most small lumps in the armpit, particularly if superficial, are sebaceous cysts due to a damaged hair follicle. Unless they become large and bothersome, most sebaceous cysts can be left alone. The most important thing is to have the lump examined by a qualified health care professional to make sure that it is indeed most likely a sebaceous cyst and not something of more concern. ...Read more

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I have a small, pea sized, hard, painless lump underneath my right armpit. Do I have anything to worry about? (Male 16

I have a small, pea sized, hard, painless lump underneath my right armpit. Do I have anything to worry about? (Male 16

Armpit lump: A hair follicle or lymph node may present as a lump. If it does not change in size most likely you do not have to see a doctor. If concerned make an appointment for thorough history. ...Read more

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I have a lump under each armpit. One has gotten smaller and the other just showed up. They are painful to touch. They are small pea sized lumps and hard?

I have a lump under each armpit. One has gotten smaller and the other just showed up. They are painful to touch. They are small pea sized lumps and hard?

I'd Bet It's Sweat: May be small areas of infection. Sweat glands can get irritated or clogged then get bigger & painful. For some people it can become a big recurring problem so best to get it examined if, unlike the other side, it doesn't resolve in a few days. Until then, see if you are sensitive to your deodorant. The topical antibacterial gels with aloe work well but if you sweat a lot you may need something milder. ...Read more

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I've found a small pea sized lump under my left armpit, that is painless and is moveable. Also my glands are also always swollen like big hard lumps.

Seen a Doctor lately: If your lymph glands are enlarged and growing bigger, you need to have them checked by your physician. Lymph nodes do not enlarge unless you have either Infection or Cancer in the lymph glands. So go seek medical evaluation and a physical examination by a doctor, soon. ...Read more

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I have a small hard lump (smaller than a pea size under my left armpit.) the lump is visible if skin is stretched. Not sore. What can it be?

I have a small hard lump (smaller than a pea size under my left armpit.) the lump is visible if skin is stretched. Not sore. What can it be?

Most likely: An INTRA-DERMAL cyst (In the skin...rather than below it) Its obviously "bothering" you so get it CHECKED OUT by your PCP (Primary Care Provider) Hope this helps!
Dr Z ...Read more

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I've a hard lump between my armpit/breast with a size between a pea and a marble for a year. It is now bigger and painful. Does this sound serious?

I've a hard lump between my armpit/breast with a size between a pea and a marble for a year. It is now bigger and painful. Does this sound serious?

It is concerning...: This could be a lymph node or fluid collection in that area, but the fact that it's been there for that long and has now changed, it should be investigated right away. Doesn't mean there's something dire going on, but we really need to know with certainty at this point. ...Read more

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Moveable pea sized lump side of breast under armpit feels dented/hard on one side & softer on the other dr said he doesn't think it's cancerous I'm 17?

Moveable pea sized lump side of breast under armpit feels dented/hard on one side & softer on the other dr said he doesn't think it's cancerous I'm 17?

Consider biopsy: Cancer is rare in women your age but it does happen. I'm of the school that any dominant mass in the breast, or one that she notices herself, deserves a biopsy. It's minimally uncomfortable and will either set your mind at ease or probably cure something serious. ...Read more

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3 year old daughter has a hard pea sized lump on her arm about 2" above her elbow it's been there for approx 5 days and looks a little bruised?

3 year old daughter has a hard pea sized lump on her arm about 2" above her elbow it's been there for approx 5 days and looks a little bruised?

Possible lymph node: Possible bruising from touching an inflammed lymphnode
possible injury and bruising in that area
your child needs to be examined to see if other lymph nodes are enlarged or there is a cause for the lymph node being enlarged ...Read more