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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.
Swelling behind the ear is typically a result of an enlarged lymph node. People also refer to this condition as having swollen glands or swollen lymph nodes. Lymph nodes can be found in many places in the body, including the groin, armpits, neck, and behind the ears.The lymph nodes' primary function is to assist the body in eliminating foreign bacteria and infections.eople also refer to this condition as having swollen glands or swollen lymph nodes. Lymph nodes can be found in many places in the body, including the groin, armpits, neck, and behind the ears. The lymph nodes' primary function is to assist the body in eliminating foreign bacteria and infections.