Ghost surgery, sometimes called the "shadow doctor" problem, is when the doctor who consults with you is not the person who actually operates. Once you are sedated, someone else does part or all of the surgery, and you wake up none the wiser. The substitute might be a junior doctor, a doctor from another specialty, a dentist, a nurse, or, in the worst documented cases, a non-clinical staff member.
Volume is what drives it. In high-throughput "factory-style" clinics, a famous doctor's name fills the appointment book while several operations run at once using stand-ins. The practice is illegal in Korea and has produced criminal convictions, but it is hard to prove, because substitutes usually leave no paper trail. The Korean Association of Plastic Surgeons has estimated roughly 100,000 ghost-surgery victims between 2008 and 2014, and Korea's National Forensic Service reports cosmetic-surgery deaths trending upward (4 in 2016 to 13 in 2024). None of this is meant to scare you off Korea, where most clinics operate properly. The point is to help you screen out the few that do not.