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Doctor insights on: Lump Under My Armpit That Hurts

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I have this lump under my armpit that hurts to the touch, a little hard and has been there now for 2 days. What can it be?

I have this lump under my armpit that hurts to the touch, a little hard and has been there now for 2 days. What can it be?

Node or abscess: Could be a node or infection.
Try using some warm moist packs to the area 3 times per day for 15 min each time.
If it disappears it was from an infection somewhere on the arm.
If it does not get smaller, or hurts more, then it is time to see your DR ...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 have a red spot/lump under my armpit which hurts. It appeared last night could it be a bite or something else?

Hair follicle: Could be infected or clogged hair follicle. Also if you have a history of MRSA exposure, could be an abscess. Have it evaluated and seen for further treatment. ...Read more

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I have this weird lump under my armpit and it hurts every time I close my arm. Should I be worried?

I have this weird lump under my armpit and it hurts every time I close my arm. Should I be worried?

Need to be seen: And examined, start with your primary doctor, could be a lymph node reacting to an infection in the area, best wishes ...Read more

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I have a lump under my armpit and it hurts it also has smaller pimples around it. It's a lil bigger than a marble?

Hidradenitis?: Hidradenitis suppurativa commonly affects areas bearing sweat/sebaceous glands, such as the underarms, under breasts, inner thighs, groin and buttocks, often manifests as clusters of chronic/recurring abscesses, epidermoid cysts, sebaceous cysts, pilonidal cyst or multilocalized infections. It is a chronic condition and treatement is often complex/difficult. So, consult doc for help. Good luck. ...Read more

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Have a small round lump under my right armpit and hurts regardless if I touch it or not? What is it? Will it heal on its own? Its been there 2 days

Have a small round lump under my right armpit and hurts regardless if I touch it or not? What is it? Will it heal on its own? Its been there 2 days

Many possibilities: While I recommend that you see a doc to be checked, sometimes the glands in our armpits can become irritated, inflamed and/or infected. Sometimes we use antibiotics, warm compresses and sometimes you need to have them lanced. For definite treatment however your doc needs to see what he is dealing with. Good luck. ...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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For a week now I've had a lump under my right armpit it was hurting but now it has went down but I still can feel it and its not painful at all.

Infection: Lymph nodes respond to the presence of inflammation or infection. The reduction in size and tenderness is very positive. If it persists, have it evaluated by your healthcare provider. ...Read more

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I have a large hard lump under my armpit very sore and red hurts to lift it has got bigger in couple days now worried what is it?

I have a large hard lump under my armpit very sore and red hurts to lift it has got bigger in couple days now worried what is it?

Likely skin abscess: Your description sounds like a skin abscess related to a hair follicle in the arm pit. You should see a regular doctor for further evaluation. It may need to be drained and oral antibiotics. ...Read more

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Palpable armpit lump 10 days now. Started painful and red. Doesn't hurt now but still there. Healthy otherwise. Cancer?

Palpable armpit lump 10 days now. Started painful and red. Doesn't hurt now but still there. Healthy otherwise. Cancer?

Local infection: It is common for a hair follicle to get infected here. Cancers do not start this abruptly and they do not start painful or red like infections do. An infected hair follicle leaves a lump of healing tissue over several weeks. ...Read more

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How to treat armpit lump?

Get medical checkup: Armpit lumps can be due to infection or due to cancer. So be sure to get yourself a medical examination by a reliable physician who can help you to diagnose and treat this problem soon. ...Read more

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Breast and armpit lump and pain, what to do?

Breast and armpit lump and pain, what to do?

Get evaluation: Lumps involving breast/ arm pit should be medically evaluated. Take care. ...Read more

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What to do if I have breast and armpit lump and pain?

What to do if I have breast and armpit lump and pain?

Exam and mammogram: Hello, if you have a new breast lump, it needs to be evaluated by your primary doctor and you may need a mammogram or ultrasound for evaluation. If it is truly a new hard lump it needs to be biopsied, but pain by itself may not be anything worrisome. Some cancers cause pain, others don't, so pain is not a very reliable symptom. ...Read more

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What does a cancer-related armpit lump feel like?

Like a lump: I am not trying to be funny but often you cannot tell malignant vs. Non-malignant masses. Inflammed nodes are sometimes tender but don't depend on that. If you have palpable masses under the armpit, have 'em checked. Best to you. ...Read more

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I've had a armpit lump for 4+ years. It gets bigger then when I change diet It gets smaller. Been itching alittle. Do I have lymphoma? Been worried.

I've had a armpit lump for 4+ years. It gets bigger then when I change diet It gets smaller. Been itching alittle. Do I have lymphoma? Been worried.

Lymphoma unlikely: It is not feasible to say what it is, without examining you. However, if it has been there for 4 years and no other lumps have appeared, it is highly unlikely to be lymphoma. You should consult a doctor any way. ...Read more

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Can starting a new birth control medication cause a armpit lump?

That should not: Be causing a lump in the armpit. An armpit lump can be an enlarged lymph node, a cyst or an inflamed hair follicle (possibly from shaving). Have it checked by your doctor to be sure of the diagnosis and treatment. If it's painful or red, you can apply warm compresses until it can be seen. ...Read more

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Could an armpit lump under the skin be a clogged sweat gland? I've had it for 2+ months.

Could an armpit lump under the skin be a clogged sweat gland? I've had it for 2+ months.

Yes, & other things: Armpit (axilla) lump under the skin could be a clogged sweat gland; also could be a lymph node enlarged due to infection in area that it drains, such as any part of the upper extremity down to the fingernail; of course those nodes also drain the breast and chest wall in the area, which could be from infection or cancer. Lymphoma would be also very serious. If it's two months, time to see your pcp. ...Read more

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Under armpit lump and chills what checkup should I do without making it obvious to my mom that I think I might have cancer. Do I have cancer? I'm 18

Less Likely: I think you should speak to your MOm right away and let her know what is happening to you. There are many other causes of a swollen lymph node in the arm pit (axilla) including and infection that needs treatment with an antibiotic. The less likely cause is a "cancer". Please see your doctor right away and also speak to your Mom. ...Read more

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Armpit lump pain, family history of breast cancer. Can it be seen or biopsied?

Armpit lump pain, family history of breast cancer. Can it be seen or biopsied?

Yes, it can: A lump under the armpit should be evaluated. A ultrasound can look at the shape and size of the lymph nodes. A needle biopsy can be performed to make a diagnosis. Contact a breast surgery specialist or go to a breast center for evaluation and risk assessment. ...Read more

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Woke up with sudden armpit lump. Very small beneath skin. Pain to touch. No redness. A bit raised skin. I scratched abit. No family history of cancer. Cause?

Woke up with sudden armpit lump. Very small beneath skin. Pain to touch. No redness. A bit raised skin. I scratched abit. No family history of cancer. Cause?

Folliculitis: This sound like it could be inflammation of hair follicle or other small irritation. Watch it and if still present after month or one menstrual cycle have it looked at. Sounds benign at this juncture but hard to say for certain without examining it. ...Read more

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I have a painful lump under my armpit that appeared this morning it hurts really bad is there anything I can do to stop the pain till it goes away.

I have a painful lump under my armpit that appeared this morning it hurts really bad is there anything I can do to stop the pain till it goes away.

Swelling axilla: Apply either warm or cold compresses, whatever feels best. You can also use ibuprofen or Tylenol (acetaminophen) every 6 hours. See your doctor to establish the cause. It may be an abscess that requires drainage. All the best. ...Read more

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Hi, I recently discovered a lump under my armpit which is a size of lentil. It doesn't hurt. Can it be a cnancer?

Lump: Based on your age and size likely not, but it should be further evaluated and biopsied if there is any clinical suspicion. ...Read more

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I have a huge lump under my armpit when it came up I thought it was a boil and it has tripled in size in the past 3 days very painful and hurts?

I have a huge lump under my armpit when it came up I thought it was a boil and it has tripled in size in the past 3 days very painful and hurts?

Need an exam: It sounds like an infected cyst or an abscess. In any case, you need to see your physician today. You may well have a problem that needs to be surgically drained or excised. ...Read more

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I'm 17 & I literally just noticed a lump under my armpit. I'm a female. Ot kind of hurts a little bit if I touch it, its not that small. Cancerous?

I'm 17 & I literally just noticed a lump under my armpit. I'm a female. Ot kind of hurts a little bit if I touch it, its not that small. Cancerous?

Skin: Your description lacks details and in dermatology really have visually see lesion. Probably not cancerous but see dr, who can diagnose. May be infected hair follicle oe sweat gland. Early abscess to consider. ...Read more