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Lymphadenopathy is a condition where the lymph nodes, small round organs found all over the body, begin to swell, which could cause painful lump behind ear. The swelling is caused by accumulation of immune cells within the lymph node.
However, this pain is usually located in front of the ear, not behind the ear. Heart disease presenting as ear pain is sometimes called âCardiac Otalgiaâ. As the most common cause of pain behind the ear is a neck-related problem, you should consider looking at what you can do to sort out your pain. Pain in or around the ear can be difficult to diagnose, as the nerve supply of the ear is complicated.