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.

Preauricular lymph nodes, which are located in front of your ears, can sometimes become swollen and painful. Common causes include an ear or tooth infection. Treatment can depend on the underlying ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." You might experience swollen lymph nodes—small, bean-shaped glands throughout your entire body—on your ...

The preauricular lymph nodes sit just in front of the ears. These tiny nodes play a vital role in protecting the body against infections and disease. In this article, we provide information on the ...

Swollen lymph nodes, or swollen glands, in the neck may indicate an infection. They can also occur due to a medical condition, such as an immune disorder or, less commonly, cancer. Treatment can ...

A swollen lymph node can be a bit like your body’s version of a red flag: When one of these bean-shaped clusters of immune cells in your neck, armpit, or groin puffs up, it’s typically an indication ...

Swollen lymph nodes may result from an infection or illness. If they last for a long time or occur with other symptoms, you may need medical care. Treatment is specific to the cause of the swollen ...

Lymph node metastasis occurs in "metastatic" lymph nodes, lymph nodes that have been infected by cancer from elsewhere in the body. A part of the immune system, lymph nodes are tiny ovals placed ...

A retropharyngeal abscess is a life-threatening collection of pus that forms in the back of the throat. It typically develops when the lymph nodes behind your throat become infected. They may have ...

New research shows lymph nodes aren’t just cancer bystanders, they’re the command centers fueling immune attacks. Surgically removing them along with tumors may weaken treatment, while preserving them ...