Rice Grain-Like Bumps Under Your Skin: Causes and When to Seek Help - Dermatology

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Grain-like lesions on the skin?


I noticed a super hard, round lump under my armpit (very close to the surface of the skin but still beneath it) that is about the size of a grain of rice.
When I press hard, I can see it under the skin, but I can't get it out.
I'm certain it's a lump.
I also have a similar lump near my belly button that I can feel through the skin.
What could this be? Should I get it checked?

LIN, 20~29 year old female. Ask Date: 2010/12/29

Dr. Guo Fengsheng reply Dermatology


Based on your description, it may be a multiple sebaceous cysts; however, it is essential for you to visit a nearby hospital's dermatology department for a biopsy to confirm the diagnosis.

Reply Date: 2010/12/29

More Info


Understanding the presence of rice grain-like bumps under your skin can be concerning, and it's important to approach this issue with a clear understanding of potential causes and when to seek medical help. Based on your description, it sounds like you are experiencing small, hard lumps beneath the skin, particularly in the armpit and near the belly button. These lumps could be a variety of things, and understanding their nature is crucial for determining the appropriate course of action.


Possible Causes
1. Sebaceous Cysts: These are common, benign lumps that can occur when sebaceous glands become blocked. They often feel like small, firm bumps under the skin and can vary in size. They are usually painless unless they become infected.

2. Lipomas: These are soft, fatty lumps that grow under the skin. They are generally harmless and can be moved slightly when pressed. Lipomas are typically not painful and do not require treatment unless they cause discomfort or cosmetic concerns.

3. Folliculitis: This is an inflammation of the hair follicles, which can lead to small, red bumps that may resemble your description. It can be caused by bacterial or fungal infections, irritation from shaving, or blockage of the follicles.

4. Dermatofibromas: These are small, firm nodules that can appear on the skin, often as a result of minor skin injuries. They are usually harmless but can be mistaken for more serious conditions.

5. Lymphadenopathy: Swollen lymph nodes can sometimes present as lumps under the skin, particularly in the armpit area. This can occur due to infections, inflammation, or other medical conditions.


When to Seek Help
It is advisable to seek medical attention if you experience any of the following:
- Changes in Size or Shape: If the lumps are growing or changing in appearance, this warrants a medical evaluation.

- Pain or Discomfort: If the bumps become painful, tender, or show signs of infection (such as redness, warmth, or pus), you should consult a healthcare provider.

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

- Persistent or Worsening Symptoms: If the lumps do not improve or worsen over time, it is important to have them evaluated.


Diagnostic Approach
When you visit a healthcare provider, they may perform a physical examination and ask about your medical history, including any recent infections, skin conditions, or changes in your health. Depending on the findings, they may recommend:
- Imaging Studies: An ultrasound may be used to assess the nature of the lumps.

- Biopsy: In some cases, a small sample of tissue may be taken for laboratory analysis to rule out any serious conditions.


Conclusion
While the presence of rice grain-like bumps under your skin can be alarming, many causes are benign and treatable. It is essential to monitor the lumps and seek medical advice if you notice any concerning changes or symptoms. Early evaluation can provide peace of mind and ensure that any necessary treatment is initiated promptly. Remember, your health is paramount, and consulting a healthcare professional is always a wise decision when in doubt.

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