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Doctor insights on: Breast Cancer Underarm

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Can pain in my right armpit be breast cancer?

Can pain in my right armpit be breast cancer?

Not likely: Breast cancer increases as women get older and it would be very unlikely for you to have breast cancer at age 20. At age 30 the chance of developing breast cancer during the next 10 years is 1 in 227. Breast cancer can spread to lymph nodes in the armpit, but this usually won't cause pain. It's much more likely your pain is from something else. ...Read more

Dr. Barry Rosen
1,337 doctors shared insights

Breast Cancer (Definition)

Breast cancer results when glandular cells lining the milk ducts and lobules of the human breast begin to grow in an unregulated manner. The growth occurs initially inside the ducts but eventually breaks outside into the breast tissue and ultimately spreads both to the lymph nodes in the armpit and via the bloodstream to other parts of the body. Because of the promoting affect of estrogen almost all breast cancer occurs in women and is a rarity in men. The unregulated growth is due to both inherited and acquired genetic defects. It is the most common malignancy in women but it often curable if found early and treated effectively with surgery, hormonal therapy, chemotherapy and targeted therapy, or a combination thereof. Early detection before the malignancy becomes large enough to be felt depends on mammography/sonography and MRI imaging of the breast ...Read more


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Can a constant pain in top breast and a little into the armpit mean breast cancer?

Can a constant pain in top breast and a little into the armpit mean breast cancer?

Not generally: Sounds like you have a muscle, vascular, lymphatic, or fascia spasm that is an obstacle to normal movements. Find osteopathic medicine treatment (doctor of osteopathy - od that uses manual manipulation therapy, or a physical therapist trained in osteopathic manual manipulation. ...Read more

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I have a pain in the far left side of my chest almost under armpit. Could it be breast cancer?

I have a pain in the far left side of my chest almost under armpit. Could it be breast cancer?

Mastalgia: Breast pain is not usually a sign of cancer and is more commonly related to hormonal changes or simple mastalgia. However, you should be seen by your surgeon to help figure out what is going on also imaging with an ultrasound could be helpful and or mammography this could be related to gynecomastia. ...Read more

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Does underarm swelling automatically mean a person has breast cancer or something very serious? What else can it mean?

Does underarm swelling automatically mean a person has breast cancer or something very serious? What else can it mean?

Lumpy armpits: No. It is in no way an automatic diagnosis of breast cancer. If indeed it's a lymph node swollen, it could be due to anything from a plugged breast duct that got a little infected, to an ingrown hair in your arm pit, to a systemic viral illness, to absolutely nothing. Try a few days of scheduled anti-inflammatories and hot compresses, and if it isn't better, let your doctor check you out. ...Read more

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Left breast started hurting, found dime sized knot near armpit, was told breast cancer doesn't hurt, is this true? What else could it be?

Left breast started hurting, found dime sized knot near armpit, was told breast cancer doesn't hurt, is this true?  What else could it be?

See a Doctor: Any new lump in the breast should be a cause for concern, best handled by seeing your gyne or primary care doctor. While most cancers are not painful, it is not a reliable finding. Hopefully, your doctor will be able to alleviate your concern or refer you to a breast center/surgeon for definitive evaluation. I hope its a false alarm--good luck. ...Read more

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Hi,I am 45 years old and I have pain almost over a year now under my armpit left side, and part of my left breast .Is this sign for breast cancer? Or

We don't guess: One does not sit at home and just worry or guess. You have a significant concern. Go get an examination and testing to determine the cause of your problem. ...Read more

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I ve small pain in my left breast, left armpit & back(left side). Can dis b a symptom of breast cancer(no cancer history in my family) I am 21 female?

I ve  small pain in my left breast, left armpit & back(left side). Can dis b a symptom of breast cancer(no cancer history in my family) I am 21 female?

Very unlikely: It would be extremely unusual, but not impossible, for this to be a breast cancer. Any persistent symptom in the breast, and certainly any mass, should be examined by a doctor. You may need to have an ultrasound of the area done. It is always better to look into these things than ignore them. ...Read more

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My left breast hurts on the side and in the armpit. Could it be breast cancer?

My left breast hurts on the side and in the armpit. Could it be breast cancer?

Not likely: Pain is not a usual feature of breast cancer. Is there a mass or lump? If there is a lump, see your doctor immediately. Does your bra fit well on both sides? Do mention this to your doctor at your next visit. ...Read more

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Does lump on the armpit always means breast cancer? I'm having it on my right armpit :(

No: Armpit lumps are rather common and can be due to a number of things including insect bites, rashes, swollen glands, and breast cancer. In your age group, breast cancer would be extremely uncommon. If this lump grows in size or does not start getting smaller over the next 2-4 weeks, you should definitely see a medical doctor for a full evaluation. ...Read more

Dr. Barry Rosen
4,224 doctors shared insights

Cancer (Definition)

Cancer is a group of diseases that is characterized by uncontrolled cell growth leading to invasion of surrounding tissues that spread to other parts of the body. Cancer can begin anywhere in the body and is usually related to one or more genetic mutations that allow normal cells to become malignant by interfering with internal cellular control mechanisms, such as programmed cell death or by preventing ...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