Sarcoidosis is the growth of small cells or granulomas. Scientists are not certain what causes this condition, although they believe there is a link to allergic reactions and immune responses. Symptoms of sarcoidosis are variable and depend on where the granulomas develop. Areas often affected include the lungs, eyes, lymph, and skin. If the condition affects the skin around the ankle, this could cause heel pain. Other signs usually accompany this symptom, such as red bumps on the skin. A doctor can diagnose sarcoidosis and recommend treatments. Although there is no cure, the condition often goes away over time.
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