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Doctor insights on: I Have A Sore Lump Under My Armpit

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I have a sore lump under my armpit?

I have a sore lump under my armpit?

Lymph node: More than likely you have an acute infection somewhere on the upper extremity that is seeding a lymph node in your arm pit. The lymph node filters the bacteria, virus or fungus and then reacts as "killer cells" come to attack the agent. The lymph node responds by growing, producing more cells, and can get tender due to the agents and chemicals released. You may need antibiotics or see pcp. ...Read more

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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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I have a sore lump under my left armpit. It wont go away, wont come to a head. Please help. Tried antibacterial soaps, tea tree oil etc....

I have a sore lump under my left armpit. It wont go away, wont come to a head. Please help. Tried antibacterial soaps, tea tree oil etc....

Abscess v lymph node: Best to get it evaluated now by doctor. May be an abscess that need to be i;d'd, or may be a lymph node? Get examined and treated, best wishes. ...Read more

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Any reason why i might have a sore lump in my armpit?

Any reason why i might have a sore lump in my armpit?

Different options: That area has a lot of things in it both in the skin and below it. Sweat glands, hair follicles and skin cysts as well as lymph nodes, fatty tissue, vessels, tendons and other things. Is the lump growing, inflamed, painful, painless, draining, recurrent or constant, moveable or fixed...? Each of these (and many more) will provide your doc the answers as to what it is and what needs to be done. ...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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I have a sore lump in my armpit with no increase in size for the past 3 weeks. Dr. diagnosed Folliculitis or pinched nerve. What could it be?

Infection/Irritation: infection, or irritation even from shaving. Fortunately, most armpit lumps are harmless. However, can be related to a more serious underlying health problem and should be evaluated by a doctor. Hope it helps. ...Read more

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I have had a small lump under my armpit for 6 years now. It tends to get sore around the time of my period, however has never changed shape. ?

Epidermal cyst: It is likely an epidermal (sebaceous) cyst. A lipoma would be less likely since they rarely cause discomfort. You can see your clinician to have it removed if bothersome or just leave it alone. Take care. ...Read more

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I had a lump under my armpit looked at by a doctor and the test said that it was a fibrous lump but lately it has been getting sore is that normal?

Fibrous lump: These should not be painful unless they get infected or start increasing in size or start pressing on other tissue in the area.. You should see the same doctor again. ...Read more

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Ive had a lump under my armpit for awhile now it hasn't chnged,I didn't think anything of it.could it be cancer ?and ive had sore breast

Ive had a lump under my armpit for awhile now it hasn't chnged,I didn't think anything of it.could it be cancer ?and ive had sore breast

Lymph Node: Sounds like a lymph node under your arm. Your breast tenderness may or may not be related. You should see your doctor for further evaluation. Good luck! ...Read more