For people who take selfies and are suffering from BDD, taking a perfect picture is the main concern. They can spend hours trying to click that perfect snap where no flaws or problems are reflected.
Though they know about their defects, they don't want the world to see them. And with this point in mind they go on with their obsession.
"Two out of three of all the patients who come to see me with BDD since the rise of camera phones have a compulsion to repeatedly take and post selfies on social media sites," said David Veale, a consultant psychiatrist at The Priory Hospital, London.
In a previous study, experts had linked selfies with mental illness. Apart from the perfect look, people who post selfies also want that perfect pose or angle of the photograph and in this pursuit they go on until they are satisfied, the report added.
"Taking selfies is not an addiction - it is a BDD symptom that involves checking one's appearance," Veale was quoted as saying in a Sunday Mirror report.