Chondrodermatitis nodularis helicis — or CNH for short — is a condition that affects your outer ear. You’ll see inflammation and a small hard bump on the ear cartilage. It's also called ...

Learn about the possible causes of a lump behind the ear. This article also discusses when to contact a doctor, how doctors diagnose the cause, and more.

A lump behind the ear can have many possible causes. The most common are swollen lymph nodes, infections, and skin conditions. These lumps or nodes are typically harmless and easy to treat, ...

A bump may form after a person gets a cartilage piercing. In this article, learn about the causes, including scarring and infections, as well as how to treat them.

In her latest video, Dr. Pimple Popper extracts a lump from behind a man's ear. She notes that she needs to send the lump in for testing, since the patient has spent a lot of time in the sun. In ...