Painful Buttock Masses: When to Seek Medical Attention - Surgery

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Buttock mass issue


A month ago, I fell and hit an object, resulting in swelling, pain, and bruising on my right buttock.
After applying a bruise ointment for several days, the symptoms subsided, and I no longer felt pain.
However, last night, the area suddenly became swollen and warm, and it only hurts when pressed firmly.
I also noticed that after sitting for a long time, the swollen area can move slightly.
I would like to know what this lump might be.
Should I seek immediate medical attention, or can it resolve on its own?

ww, 40~49 year old female. Ask Date: 2021/09/09

Dr. Yu Mingchang reply Surgery


Hello: A hematoma is scheduled for an outpatient surgical consultation.

Reply Date: 2021/09/09

More Info


When it comes to painful masses in the buttock area, especially following a traumatic incident like a fall, it’s essential to approach the situation with caution. Based on your description, it seems that you initially experienced a bruise and swelling that improved with topical treatment. However, the sudden increase in size, warmth, and tenderness, particularly after a period of inactivity (like sitting), raises some concerns.

The mass you are experiencing could potentially be a hematoma, which is a localized collection of blood outside of blood vessels, often caused by trauma. Hematomas can sometimes resolve on their own, but they can also become complicated. The fact that the mass has become painful and is now warm to the touch suggests that there may be an inflammatory process occurring, possibly indicating an infection or the formation of an abscess.

An abscess is a collection of pus that can occur when bacteria infect a localized area, often following trauma. The movable nature of the mass you described could suggest that it is not firmly attached to the underlying tissues, which is typical for a hematoma or an abscess. However, the presence of fever and increased pain upon pressure are red flags that warrant further evaluation.

Here are some key points to consider regarding when to seek medical attention:
1. Increased Pain and Tenderness: If the mass is becoming increasingly painful, especially if the pain is severe or worsening, this is a sign that you should seek medical attention.

2. Fever: The presence of fever can indicate an infection. If you have a fever (typically defined as a temperature above 100.4°F or 38°C), it is advisable to see a healthcare provider.

3. Changes in Size or Appearance: If the mass continues to grow or changes in color (e.g., becoming redder), this could indicate a worsening condition.

4. Mobility and Function: If the mass is affecting your ability to sit comfortably or perform daily activities, it is worth getting evaluated.

5. Duration: If the mass does not improve or resolve within a few days, it is prudent to seek medical advice.

In summary, while some hematomas can resolve on their own, the combination of increased size, warmth, tenderness, and the potential for infection suggests that you should seek medical evaluation. A healthcare provider may perform a physical examination and possibly imaging studies (like an ultrasound) to determine the nature of the mass and whether any intervention is necessary. Early intervention can prevent complications and ensure appropriate treatment, especially if an abscess or infection is present.
In conclusion, given your symptoms, it would be wise to consult a healthcare professional promptly to ensure that you receive the appropriate care and to rule out any serious conditions.

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