Although swollen lymph nodes behind the ear are more common due to the location ... or unexplained weight loss Swollen lymph ...

A lump behind the ear can have many possible causes. The most common include swollen lymph nodes caused by an uncomplicated infection. These lumps are typically harmless and relatively easy to treat.

Sometimes, lymph nodes can swell because of cancer. Lymph nodes usually swell near the site of the injury. For example, lymph nodes behind or under the ears may ... causes of swollen lymph nodes ...

Sometimes, lymph nodes swell in response to bacterial or viral infections. They may feel hard and painful. Swollen lymph nodes usually occur in the head, neck, armpits, or groin. Several factors ...

When allergies are the culprit, swollen lymph nodes typically appear as small, movable lumps about the size of a pea or bean under the skin, most commonly in the neck area, behind the ears ...