Should You Worry About Small Bumps Under Your Armpit?

Please ask your question?

Hello, today while taking a shower, I suddenly noticed one or two very small bumps near my armpit.
I'm worried that they might be something unusual.
Could it just be that I'm cold and got goosebumps? However, it also resembles something I have near my neck, which is larger.
I previously saw a dermatologist who said it was a small skin tag and that it wasn't a concern.
I would like to ask the doctor if these types of things are okay to ignore.
Thank you.

Den, 10~19 year old female. Ask Date: 2022/12/22

Dr. Hong Yuanbin reply Internal Medicine

Hello, based on your description and the images, it appears to be a skin gland, which is a normal physiological structure.
There's no need to worry.
Thank you for your inquiry.

Reply Date: 2022/12/22

More Info

When you discover small bumps under your armpit, it can understandably cause concern. However, it’s essential to approach this situation with a clear understanding of what these bumps might be and when you should seek medical attention.

Firstly, small bumps in the armpit area can be caused by a variety of factors. Common causes include:
1. Lymph Nodes: The armpit contains lymph nodes, which can become swollen due to infections, inflammation, or other medical conditions. If these bumps are tender or painful, it may indicate that your body is fighting an infection.

2. Folliculitis: This is an inflammation of the hair follicles, often caused by bacterial or fungal infections. It can lead to small, red bumps that may be itchy or painful.

3. Sebaceous Cysts: These are non-cancerous lumps beneath the skin, often filled with a fatty substance. They are generally harmless but can become infected.

4. Skin Tags or Fibromas: These are benign growths that can appear in various areas of the body, including the armpits. They are usually painless and don’t require treatment unless they become bothersome.

5. Allergic Reactions: Sometimes, a reaction to deodorants, soaps, or other products can cause small bumps or rashes.

Given that you mentioned a previous consultation with a dermatologist regarding similar bumps on your neck, which were identified as harmless skin tags, it’s possible that the bumps under your armpit could be of a similar nature. If they are not painful, do not change in size, and do not exhibit any signs of infection (such as redness, warmth, or drainage), they may not require immediate medical attention.

However, there are specific situations where you should consider seeking medical advice:
- Persistent or Worsening Symptoms: If the bumps continue to grow, become painful, or are accompanied by other symptoms such as fever, night sweats, or unexplained weight loss, it’s essential to consult a healthcare provider.

- Changes in Appearance: If the bumps change in color, shape, or size, or if new bumps appear, it’s advisable to have them evaluated.

- Personal Medical History: If you have a history of skin cancer or other skin conditions, it’s prudent to have any new or changing skin lesions assessed by a professional.

In summary, while small bumps under the armpit can often be benign and not a cause for concern, it’s crucial to monitor them for any changes. If you have any doubts or if the bumps exhibit concerning characteristics, don’t hesitate to reach out to a healthcare professional for a thorough evaluation. Regular check-ups and being attentive to your body’s signals are key components of maintaining good health.

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