Hard Lumps in the Armpit: When to See a Doctor - Oncology

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There is a lump in the armpit?


I noticed a small lump in my right armpit three days ago.
I'm wondering if it could be cancer because it feels a bit hard, but it doesn't hurt when I'm not touching it.
If it is cancer, which specialty should I consult?

Huang Song Wo, 10~19 year old female. Ask Date: 2020/12/06

Dr. Chen Sirong reply Oncology


Huang Song, 15 years old, male, has been experiencing some stiffness.
Please consult a general surgeon for confirmation.
Wishing you safety, health, and academic success.
Taoyuan Hospital, Chen Si-Rong.

Reply Date: 2020/12/06

More Info


When it comes to hard lumps in the armpit, it is essential to approach the situation with a clear understanding of potential causes and the appropriate steps to take. The presence of a lump in the armpit can be concerning, especially if it feels hard and is not painful. However, it is important to note that not all lumps are indicative of cancer.
Lumps in the armpit can arise from various conditions, including swollen lymph nodes, cysts, infections, or benign tumors. The lymph nodes in the armpit can become enlarged due to infections, such as a cold or flu, or due to localized infections in the arm or breast. Cysts, which are fluid-filled sacs, can also form in this area and may feel firm but are generally harmless.
While the possibility of cancer cannot be entirely ruled out, especially if there are other concerning symptoms such as unexplained weight loss, night sweats, or persistent fatigue, it is crucial not to jump to conclusions. The most common cancers associated with armpit lumps are breast cancer and lymphoma, but these conditions often present with additional symptoms.

If you have discovered a hard lump in your armpit, it is advisable to see a healthcare professional for an evaluation. The first step would typically be to consult a primary care physician or a family doctor. They can perform a physical examination and may order imaging studies, such as an ultrasound, to better understand the nature of the lump. Depending on the findings, they may refer you to a specialist, such as a surgeon or an oncologist, for further evaluation and management.

In summary, while a hard lump in the armpit can be concerning, it is essential to remain calm and seek medical advice. Early evaluation by a healthcare professional can help determine the cause of the lump and guide you on the appropriate next steps. Remember, most lumps are benign, but it is always better to err on the side of caution and get a professional opinion.

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