Nearly one in 10 patients seeking facial plastic surgery suffers from a mental illness that distorts their perception of physical defects, but doctors often donโ€™t spot the problem, new research suggests.

Researchers found that plastic surgeons correctly identified the diagnosis of body dysmorphic disorder (BDD) in less than 5 percent of patients who screened positive for the disorder.

According to published reports, many specialists suspect that the late superstar Michael Jackson — who underwent repeated plastic surgeries that dramatically changed his appearance — struggled with body dysmorphic disorder. Those affected with BDD, considered a type of obsessive-compulsive disorder, are overly preoccupied with perceived body defects that are actually miniscule and commonly involve the nose, eyes, skin or hair, the study authors said.

โ€œWe all knew patients with BDD were in our practice, but we didnโ€™t know the prevalence of it,โ€ said study author Dr. Lisa Earnest Ishii. Sheโ€™s an associate professor of otolaryngology-head and neck surgery in the division of facial plastic and reconstructive surgery at Johns Hopkins University School of Medicine in Baltimore.

โ€œSo one of the interesting findings was the high prevalence of BDD [our study] showed,โ€ Ishii added. โ€œThe other surprise was just how poor we were as surgeons at picking it up.โ€