Painful Lumps Under the Armpit: When to See a Doctor - Oncology

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When it comes to painful lumps under the armpit, it is essential to approach the situation with caution, especially given the symptoms you are experiencing. Based on your description, it seems that you have developed a lump that is painful to the touch and has been increasing in size. While some lumps can be benign and may resolve on their own, the presence of pain, especially if it is worsening, warrants further investigation.


Understanding the Symptoms
1. Painful Lump: The fact that the lump is painful and has a "water-filled" sensation could indicate several possibilities. It might be a cyst, which is a sac filled with fluid, or it could be an inflamed lymph node. Lymph nodes can become swollen and tender due to infections or other inflammatory processes in the body.

2. Location: The armpit area contains lymph nodes that can react to infections, injuries, or even systemic conditions. If the lump is indeed a swollen lymph node, it could be responding to an infection in the body, such as a skin infection or a viral illness.

3. Size and Growth: The fact that the lump seems to be getting larger is a significant factor. While some lumps can be harmless, any growth in size, especially accompanied by pain, should be taken seriously.


When to See a Doctor
Given your symptoms, it is advisable to see a doctor rather than simply waiting and observing. Here are some reasons why:
- Persistent Pain: If the pain persists or worsens, it is a sign that something may be wrong that needs medical attention.

- Increasing Size: A lump that is growing in size should be evaluated to rule out any serious conditions.

- Duration: Since you mentioned that the lump has been present for about three days and is causing discomfort, it is prudent to seek medical advice sooner rather than later.

- Associated Symptoms: If you experience other symptoms such as fever, night sweats, unexplained weight loss, or fatigue, these could indicate a more serious underlying condition that requires immediate attention.


What to Expect at the Doctor's Office
When you visit a healthcare provider, they will likely perform a physical examination of the lump and may ask about your medical history, any recent infections, or other symptoms you may have experienced. Depending on their findings, they may recommend:
- Imaging Tests: An ultrasound or other imaging studies may be ordered to get a better look at the lump and surrounding tissues.

- Blood Tests: These can help determine if there is an underlying infection or other systemic issues.

- Biopsy: In some cases, if the lump appears suspicious, a biopsy may be performed to determine the nature of the lump.


Conclusion
In summary, while some lumps can be benign and self-resolving, the characteristics of your lump—pain, growth, and location—suggest that it is wise to consult a healthcare professional. Early evaluation can help identify the cause and ensure that any necessary treatment is initiated promptly. Do not hesitate to seek medical attention, as it is always better to err on the side of caution when it comes to your health.