why is there a bump on the back of my cartilage piercing

why is there a bump on the back of my cartilage piercing

why is there a bump on the back of my cartilage piercing. There are any references about why is there a bump on the back of my cartilage piercing in here. you can look below.

Showing posts matching the search for why is there a bump on the back of my cartilage piercing