Ear tags are also known as accessory tragus or branchial cleft remnant.
Ear tags are benign skin growths that sometimes contain cartilage. They typically appear in front of the ear or on the cheek. The term "ear tag" is a common, descriptive term, but the more formal medical terms are accessory tragus or branchial cleft remnant, depending on the origin and composition of the tag.
Essentially, an ear tag is a small piece of extra tissue located around the ear.