Painful Armpit Lumps: Causes and When to Seek Help - Oncology

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When you discover a painful lump in your armpit, especially if it coincides with your menstrual cycle, it can be concerning. Understanding the potential causes of this symptom is crucial for determining whether you should seek medical attention.


Possible Causes of Painful Armpit Lumps
1. Lymphadenopathy: One of the most common causes of lumps in the armpit is swollen lymph nodes. These can become enlarged due to infections (like a cold or flu), inflammatory conditions, or even cancer. If the lump is tender and you have accompanying symptoms like fever or a sore throat, it may indicate an infection.

2. Hormonal Changes: Many women experience changes in their breast and lymphatic tissue due to hormonal fluctuations during their menstrual cycle. This can lead to temporary swelling or tenderness in the breast and armpit area.

3. Cysts: Sebaceous cysts can form in the armpit and may become painful if they become inflamed or infected. These are usually benign and can be treated if they cause discomfort.

4. Infections: Conditions such as folliculitis (inflammation of hair follicles) or abscesses can cause painful lumps in the armpit. These often require medical treatment, especially if they are infected.

5. Breast Conditions: Sometimes, breast tissue can extend into the armpit area, and conditions like fibrocystic breast changes can cause lumps that may be painful.

6. Other Causes: Less commonly, painful lumps can be associated with more serious conditions, such as lymphoma or breast cancer. While these are less likely, they should not be ruled out, especially if the lump persists or is accompanied by other concerning symptoms.


When to Seek Medical Help
You should consider seeking medical attention if:
- The lump persists for more than a couple of weeks.

- The lump increases in size or becomes more painful.

- You experience other symptoms such as fever, night sweats, unexplained weight loss, or fatigue.

- You notice changes in your breast tissue, such as new lumps or changes in size or shape.

- You have a history of breast cancer or other risk factors.


Conclusion
While it is not uncommon to find a painful lump in the armpit, especially related to hormonal changes, it is essential to monitor the situation closely. If the lump does not resolve or if you have any concerning symptoms, it is advisable to consult a healthcare professional. They may perform a physical examination and possibly imaging studies or a biopsy to determine the cause of the lump. Early evaluation can provide peace of mind and ensure that any necessary treatment is initiated promptly.
In the meantime, maintaining a healthy lifestyle, managing stress, and ensuring adequate rest can help support your overall health. If you have any further questions or concerns, don’t hesitate to reach out to a healthcare provider.