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What department should I visit for a lump under the armpit?

Feb 22, 2022 Source: Cainiu Health
Dr. Lv Aiming
Introduction
There is a lump under the arm; the patient is advised to visit the General Surgery Department for evaluation and treatment. A lump in the axillary region may indicate one of the following conditions: First, accessory breast tissue—this is a very common condition in women, presenting as a palpable mass in the axilla. The mass may be tender or painful and typically feels soft on palpation. Ultrasound examination can assist in diagnosis.

A painful lump under the armpit is often overlooked by many people. In fact, even small lumps can pose significant health risks—never ignore armpit lumps again. So, what should you do if you notice a painful lump under your armpit?

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Which department should you visit for an armpit lump?

If you discover a lump under your armpit, it is advisable to consult a general surgeon. Such lumps may be caused by one of the following conditions:

1. Accessory breast tissue (supernumerary breast): A common condition in women, characterized by a soft, palpable mass under the armpit that may be tender or painful. Ultrasound imaging can aid in diagnosis.

2. Lymphadenitis: Typically results from infection spreading to the axillary lymph nodes from the upper limb or chest wall. It presents as a tender, painful lump under the armpit, often with localized tenderness upon palpation.

3. Metastatic lymph node involvement, most commonly due to breast cancer metastasis to the axillary lymph nodes.

4. Sebaceous cyst: A benign, superficial swelling arising from the skin surface of the axilla.

Note: Lymphoma does not typically manifest as a lump on the skin surface of the axilla. Normal lymph nodes reside deeper within the subcutaneous tissue. A nodule felt approximately one centimeter (about one-third the depth of the skin) beneath the axillary skin surface is likely a lymph node. Conversely, lumps appearing directly on the skin surface are more commonly moles or common warts (verrucas).

It is recommended to first monitor the lump. If it shows no progression, no immediate intervention is necessary. However, if it becomes itchy, inflamed, or continues to enlarge, prompt medical evaluation is advised.

Lymphatic drainage obstruction—caused by infection, inflammation, or other factors—can lead to accumulation of lymphatic fluid in the interstitial tissues, resulting in localized lymphedema. Mild cases may resolve spontaneously. However, if lymphedema persists for three to four weeks, medical evaluation is recommended; in such cases, consult an internal medicine specialist.

We hope this information is helpful. Wishing you good health and happiness!


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