Armpit Lumps: When to See a Doctor for Lymph Node Issues - Family Medicine

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When it comes to discovering lumps in the armpit area, particularly those that are painful and measure around 1 cm in diameter, it is essential to approach the situation with a clear understanding of what these lumps might signify and when to seek medical attention.
Firstly, the presence of lumps in the armpit can often be attributed to swollen lymph nodes. Lymph nodes are small, bean-shaped structures that are part of the lymphatic system, which plays a crucial role in the body’s immune response. They can swell due to various reasons, including infections, inflammation, or more serious conditions such as malignancies. In your case, the fact that the lumps are painful upon pressure may suggest that they are reactive lymph nodes, possibly responding to an infection or inflammation in the body.

Common causes of swollen lymph nodes in the armpit include:
1. Infections: This could be a localized infection in the arm or breast, or a systemic infection such as a viral illness (like the flu) or bacterial infections (like strep throat or skin infections).


2. Inflammation: Conditions such as autoimmune diseases (like lupus or rheumatoid arthritis) can also lead to lymph node enlargement.

3. Malignancies: While less common, swollen lymph nodes can indicate the presence of cancer, either originating in the lymphatic system (like lymphoma) or metastasizing from other areas (like breast cancer).

Given that you have noticed two lumps that are painful, it is advisable to consult a healthcare professional. The appropriate specialist to see would typically be a primary care physician or an internist, who can evaluate your symptoms and medical history. If necessary, they may refer you to a specialist, such as an oncologist or a surgeon, for further evaluation.

During your visit, the doctor will likely perform a physical examination and may order additional tests, such as:
- Blood tests: To check for signs of infection or other underlying conditions.

- Imaging studies: Such as an ultrasound or CT scan, to assess the size and characteristics of the lymph nodes.

- Biopsy: If there is a concern for malignancy, a biopsy may be performed to obtain tissue for pathological examination.

In summary, while swollen lymph nodes in the armpit can often be benign and related to infections or inflammation, the presence of pain and the size of the lumps warrant a medical evaluation. It is crucial to address any concerns promptly to rule out serious conditions and to receive appropriate care. Remember, early diagnosis and treatment are key to managing any potential health issues effectively.