Hard Lumps: What to Know About Your Symptoms - Surgery

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There is a palpable mass?


Hello, the surface of my left buttock looks normal, but in the middle of the left buttock, there is a small, hard, round lump that is about 2 centimeters in size.
It feels a bit tender when pressed.
What could this be? If I need to get it checked, which specialist should I see? I'm a bit worried and scared.

Xiao Bai, 20~29 year old female. Ask Date: 2007/08/26

Dr. Lu Shangbin reply Surgery


In principle, 90% of tumors in the buttocks are benign.
If the mass is movable, it indicates that it is located subcutaneously and is not connected to the underlying muscle tissue, which is generally indicative of a lipoma, epidermoid cyst, or a bursa.
It is advisable to consult a more experienced surgeon for an examination.

Reply Date: 2007/08/26

More Info


Hello! It sounds like you are experiencing some discomfort and concern regarding a hard lump on your left buttock. First and foremost, it's important to approach this situation with a calm mindset, as many lumps can be benign and not indicative of a serious condition. However, it is always wise to seek medical advice when you notice any new or unusual changes in your body.

The lump you described, being hard, round, and approximately 2 centimeters in size, could be a number of things. Some common possibilities include:
1. Lipoma: This is a benign tumor made of fat tissue. Lipomas are usually soft, movable, and painless, but they can sometimes feel firm and may cause discomfort if they press on nearby nerves or tissues.

2. Cyst: A sebaceous cyst, for example, is a common type of cyst that can form under the skin. These are usually filled with a thick, oily substance and can feel firm. They may become inflamed or infected, leading to pain and tenderness.

3. Fibroma: This is a benign tumor made of fibrous or connective tissue. Fibromas can occur in various parts of the body and may feel firm to the touch.

4. Abscess: If the lump is painful and red, it could be an abscess, which is a collection of pus that forms due to infection. Abscesses typically require medical treatment to drain the pus and address the underlying infection.

5. Muscle Knot: Sometimes, muscle tension or strain can lead to the formation of a hard knot in the muscle tissue, which can be tender when pressed.

Given that the lump is causing you some discomfort, it is advisable to consult a healthcare professional. You can start by seeing a primary care physician, who can evaluate the lump and determine if further investigation is necessary. Depending on their assessment, they may refer you to a specialist, such as a dermatologist (for skin-related issues) or a surgeon (if surgical intervention is needed).

When you visit the doctor, be prepared to provide detailed information about the lump, including when you first noticed it, any changes in size or shape, and any associated symptoms such as pain, redness, or swelling. This information will help the healthcare provider make an accurate diagnosis.

In the meantime, try to avoid pressing on the lump or manipulating it, as this could potentially lead to irritation or infection. It’s understandable to feel anxious about this situation, but remember that many lumps are harmless. Seeking medical advice is the best way to address your concerns and ensure your health and well-being.

If you experience any sudden changes, such as increased pain, fever, or any other concerning symptoms, do not hesitate to seek immediate medical attention. Your health is important, and addressing these symptoms early can lead to better outcomes. Take care, and I hope you find relief and answers soon!

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