Swollen Lymph Nodes Underarm: Pain and Possible Causes Explained - Surgery

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Swollen lymph nodes in the underarm area can be concerning, especially when accompanied by pain. The lymphatic system plays a crucial role in the body’s immune response, and lymph nodes can swell for various reasons, including infections, inflammation, or even malignancies. In your case, the recent history of a car accident and an open fracture raises some important considerations.

Firstly, it's essential to understand that lymph nodes can swell due to localized infections or systemic conditions. Infections are the most common cause of lymphadenopathy (swollen lymph nodes). For instance, if there was an infection in the arm or hand due to the injury, the lymph nodes in the underarm could react by swelling. This is part of the body’s immune response, as lymph nodes filter lymph fluid and help fight infections.
Given that you mentioned the injury is healing and you are using artificial skin, it’s possible that there could still be some residual inflammation or a minor infection at the site of the injury, even if it appears to be healing well. The pain you are experiencing when lifting your arm could be due to the swelling of the lymph nodes, which can cause discomfort and a pulling sensation, especially when the arm is in motion.

Another potential cause for swollen lymph nodes could be related to systemic infections, such as viral infections (e.g., mononucleosis) or bacterial infections. If you have had any recent illnesses, even minor ones, they could contribute to the swelling. Additionally, if you have experienced any other symptoms such as fever, night sweats, or unexplained weight loss, it would be important to discuss these with your healthcare provider.

In some cases, lymph nodes can swell due to non-infectious causes, such as autoimmune diseases or malignancies. However, given your recent injury and the localized nature of the swelling, these are less likely explanations at this point. It is also worth noting that lymph nodes that are swollen due to infection or inflammation are often tender to the touch, while those that are swollen due to malignancy are usually not painful.

It is crucial to monitor the situation. If the swelling persists, worsens, or if you develop additional symptoms, it would be advisable to seek further medical evaluation. Your healthcare provider may recommend imaging studies, such as an ultrasound, to assess the lymph nodes more closely or blood tests to check for signs of infection or other underlying conditions.

In summary, the swollen lymph nodes in your underarm could likely be a response to your recent injury, possibly due to localized inflammation or infection. However, it is essential to keep an eye on the symptoms and consult with your healthcare provider if there are any changes or concerns. They can provide a more comprehensive evaluation and determine if any further investigation or treatment is necessary.