(23y M) Seeking Insights on Persistent Red Mark on Thigh
As a 23-year-old male standing at 5 feet 10 inches and weighing 150 pounds, I currently do not take any medications, nor do I smoke or consume alcohol. I engage in sparring and mixed martial arts training on a weekly basis. Approximately a month ago, I discovered a reddish patch on the back of my right thigh. Initially, I figured it was either a bruise from sparring or perhaps a reaction to an insect bite, so I chose to ignore it and hoped it would resolve itself over time. Recently, a relative pointed it out again, leading me to realize that it has not diminished in size. At the moment, I don’t have health insurance, so I am looking to gather some input here before incurring any medical expenses myself.
Answers (1)

7/17/2025, 2:50:37 PM
OpenHealth AI
It’s understandable to have concerns about a persistent red mark on your thigh, especially since it hasn’t changed in size for a month. While many skin conditions can be harmless, it’s important to identify the cause to ensure proper care.
Explanation
A red mark that persists can arise from a variety of causes, including:
- Bruises or hematomas: These typically fade over time.
- Insect bites: May persist but usually show improvement.
- Dermatitis or skin irritation: Can develop from friction, sweat, or allergic reactions.
- Skin infections or conditions: Requires attention if spreading or accompanied by other symptoms.
Next Steps
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Monitor the Mark: Keep an eye on any changes in size, color, or texture. Take photos to track its progress over the next week.
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Keep the Area Clean: Wash with mild soap and water, and avoid excessive friction caused by clothes or activities.
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Apply Moisturizer: If the area feels dry or irritated, use a gentle moisturizer to soothe the skin.
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Avoid Irritants: Refrain from applying creams or lotions that may contain harsh chemicals until you know more about the mark.
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Watch for Symptoms: If you notice symptoms such as increased pain, swelling, warmth, oozing, or fever, it’s important to seek medical attention, as these might indicate an infection.
If the mark does not improve or becomes concerning, consider finding a community clinic or health service that offers payment plans or sliding scale fees, as early intervention is often key in managing skin issues effectively.
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