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Lump behind the ear: Possible causes and diagnosis
A lump behind the ear can be caused by swollen lymph nodes, which are common and usually harmless. Most lumps behind the ear ...
Hidradenitis Suppurativa (HS), an inflammatory skin condition, is caused by an overactive immune system. HS causes painful boils and abscesses. It can occur anywhere you have hair follicles, including ...
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