Lumps Under the Armpit: When to Seek Medical Advice - Oncology

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There is a hard lump in the armpit?


Hello Doctor: A few days ago, I discovered a lump in my armpit that doesn't look much like a pimple.
It is painful to touch and press, but the pain has been decreasing day by day.
After about three days, it is almost painless, but the lump is still there, and there is no noticeable swelling or redness on the surface.
My menstrual period just started; I wonder if this is related? Which specialty should I see for an examination? Thank you, Doctor!

Lin, 20~29 year old female. Ask Date: 2017/10/29

Dr. Lai Yicheng reply Oncology


Ms.
Lin: Thank you for your inquiry.
Based on your description, it is very likely related to your menstrual cycle.
I recommend seeing a breast surgeon for further evaluation.
Wishing you peace and comfort, Dr.
Lai Yi-Cheng, Radiation Oncology.

Reply Date: 2017/10/29

More Info


When it comes to discovering a lump under the armpit, it's essential to approach the situation with caution and awareness. The presence of a lump can be concerning, and understanding when to seek medical advice is crucial for your health.

Firstly, it’s important to note that lumps in the armpit can arise from various causes. Commonly, they may be benign conditions such as swollen lymph nodes, cysts, or lipomas (fatty tumors). Lymph nodes can swell due to infections, inflammation, or even stress, and they often return to normal once the underlying issue resolves. In your case, since you mentioned that the lump was painful at first but has since become less painful, this could indicate that it is related to a transient condition, possibly linked to your menstrual cycle or a minor infection.

However, there are several factors to consider that would warrant a visit to a healthcare professional:
1. Duration and Changes: If the lump persists for more than two weeks without improvement, or if it continues to grow, it is advisable to seek medical attention. Changes in the lump's size, shape, or consistency can also be significant indicators.

2. Associated Symptoms: Pay attention to any additional symptoms you may experience, such as fever, night sweats, unexplained weight loss, or fatigue. These could indicate a more serious underlying condition that requires prompt evaluation.

3. Pain and Sensitivity: While the lump has become less painful, any sudden increase in pain or tenderness should be taken seriously. Pain can sometimes indicate inflammation or infection, which may require treatment.

4. Menstrual Cycle Connection: Hormonal changes during your menstrual cycle can lead to temporary swelling of lymph nodes or other tissues. However, if the lump does not resolve after your menstrual cycle, it should be evaluated.

In terms of which medical specialty to consult, starting with a primary care physician is a good option. They can perform a physical examination and, if necessary, refer you to a specialist such as a dermatologist or an oncologist, depending on their findings. If the lump is suspected to be related to lymph nodes, an evaluation by an internist or an ear, nose, and throat (ENT) specialist may also be appropriate.

During your visit, the doctor may perform imaging studies, such as an ultrasound, to assess the lump further. In some cases, a biopsy may be necessary to determine the nature of the lump, especially if there is any suspicion of malignancy.

In summary, while many lumps under the armpit are benign and may resolve on their own, it is essential to monitor the situation closely. If the lump persists, changes, or is accompanied by concerning symptoms, do not hesitate to seek medical advice. Early evaluation and intervention can lead to better outcomes and peace of mind.

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