Movable Lumps in the Armpit: When to Seek Medical Advice

Axillary lump

I have a hard lump under my armpit that is about the size of a bean.
It is movable and not painful.
This condition has been present for about four years.
I remember that two years ago, I had a breast ultrasound at a gynecologist's office, but the doctor did not specifically address my armpit.
They only mentioned that it was not concerning.
I couldn't quite locate it at that time, but they assured me that everything with my breasts was fine since it took some time to find the lump.
It was about the size of a grain of rice, but I can't recall exactly.
Now, I can easily feel it, and I can vaguely see its position from the outside.
I would like to know if this is something serious.
If I need to get it checked, which department should I visit? I'm quite worried.
Thank you.

A-Ling, 20~29 year old female. Ask Date: 2007/03/21

Dr. Xu Junzheng reply Obstetrics and Gynecology

It is advisable to consult a breast surgeon for examination.
Thank you!

Reply Date: 2007/03/21

More Info

When it comes to movable lumps in the armpit, it is essential to understand the potential causes and when to seek medical advice. The lump you described, which is about the size of a bean, movable, and painless, could be a benign condition, but it is crucial to monitor any changes in size, shape, or associated symptoms.

Possible Causes of Movable Lumps in the Armpit
1. Lymph Nodes: The most common cause of lumps in the armpit is swollen lymph nodes. Lymph nodes can become enlarged due to infections, inflammation, or even malignancies. If the lump is a lymph node, it may indicate an immune response to an infection or other underlying condition.

2. Lipomas: These are benign tumors made of fat tissue. They are usually soft, movable, and painless. Lipomas are generally harmless and do not require treatment unless they cause discomfort or cosmetic concerns.

3. Cysts: Sebaceous cysts can form in the armpit area and are typically filled with a thick, oily substance. They can be movable and painless but may become infected, leading to pain and swelling.

4. Fibroadenomas: Although more commonly found in the breast, these benign tumors can also occur in the axillary region. They are usually firm, movable, and painless.

5. Malignant Tumors: While less common, it is essential to consider the possibility of cancer, especially if there are other concerning symptoms such as weight loss, night sweats, or persistent fever.

When to Seek Medical Advice
Given that you have had this lump for four years without significant change, it may not be an immediate cause for concern. However, you should seek medical advice if:
- The lump increases in size or changes in texture.

- You experience pain, redness, or swelling in the area.

- You develop other symptoms such as fever, night sweats, or unexplained weight loss.

- You have a family history of breast cancer or other malignancies.

Recommended Medical Consultation
For evaluation of a lump in the armpit, you should consider seeing a healthcare provider who specializes in breast health or general surgery. A breast specialist or a general surgeon can perform a thorough examination and may recommend imaging studies, such as an ultrasound or mammogram, to assess the lump further. If necessary, they may perform a biopsy to determine the nature of the lump.

Conclusion
While many lumps in the armpit are benign and not a cause for concern, it is always best to err on the side of caution. Regular self-examinations and awareness of any changes in your body are crucial. If you feel uncertain or anxious about the lump, do not hesitate to seek medical advice. Early evaluation can provide peace of mind and ensure that any potential issues are addressed promptly.

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