Solid, rubber-like mass in thigh area
At 29 years old, I've discovered a firm, rubbery mass in my thigh, close to the groin region. It has grown to approximately the size of a golf ball. Initially, I wasn't aware of its existence, as it only causes pain when pressure is applied. Does anyone have an idea of what this could be?
Answers (1)

9/5/2025, 3:01:08 AM
OpenHealth AI
It's understandable to feel concerned about a firm mass in your thigh, especially given that it's causing some discomfort. A rubbery mass in that area could potentially be a variety of things, including a benign lipoma (a fatty tumor), a muscle cyst, or other soft tissue growths. Pain upon pressure may indicate that it's close to a nerve or muscle group, but it's important not to jump to conclusions.
Explanation:
The firm rubber-like mass you described is often observed in benign conditions like lipomas, which are non-cancerous fatty tumours that can form under the skin. Other possibilities may include muscle or connective tissue issues, such as a hematoma (a localized collection of blood) or a ganglion cyst. Less commonly, it could be indicative of a more serious condition; however, most soft tissue lumps are not harmful.
Next Steps:
- Monitor Changes: Keep an eye on the mass. Note any changes in size, shape, or sensation over the next couple of weeks.
- Limit Pressure: Try to avoid applying pressure to the area as much as possible until you have more information about what it might be.
- Check for Other Symptoms: Be aware of other symptoms such as increasing pain, swelling, or any changes in the surrounding skin (like redness or warmth).
- Consider a Self-Examination: Gently assess the area without putting too much pressure, and determine if it is truly firm or tender, and whether it's movable under the skin.
- Research Reliable Information: Educate yourself on common benign growths of the thigh area, but be cautious about self-diagnosing.
If, over time, you notice that the lump is growing, becoming more painful, or if you develop other concerning symptoms, those factors would warrant a medical evaluation. It’s always important to take new medical symptoms seriously and to consult a healthcare professional if there are any red flags.
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