Key Points A lump in the earlobe is usually an epidermoid cyst. This is a small, harmless sac of skin cells and keratin under the skin, and it is the commonest type of skin cyst. Piercings are a common trigger, but not the only one. A piercing can push surface skin cells under the skin, … Continue reading Earlobe Cyst — Causes, Symptoms and How to Get Rid of a Lump in the Earlobe