👉 Mastoidotomy is a surgical procedure that involves removing part of the mastoid bone, which is the structure that covers the ear and skull. Mastoids are located in the front of the skull, just behind the ears. The mastoid bone acts like a small airbag for the skull, protecting it from debris and infections. During surgery, a doctor will make an incision (cut) or puncture (in) the mastoid bone to expose its contents. Then they may use a