Body dysmorphic disorder can come in all different forms and severities.  It’s not just one that would cause someone to suffer an eating disorder.  People become preoccupied with one or more flaws in their appearance that they then blow up when others do not even likely notice it.  For example, Michael Jackson may have suffered from it in part due to all of the things he was told about his nose as a younger child.  Sometimes it comes from that kind of abuse and sometimes it just appears out of nowhere seemingly enough.  These can involved hair, wrinkles, blemishes, noses, height, body composition, body odor, etc.  It usually emerges at adolescence, and when it’s wrinkles or other skin problems, many are likely to seek out surgery.  They go in for all kinds of procedures when to the rest of us their skin looks just fine, possibly even better than the average.  But when they look in the mirror, they see something terrible that completely horrifies them, and to them it seems like everybody can see it.  Even as they undergo cosmetic surgeries however, they find that the trouble spot or area never goes away.  If you know someone who suffers from this, consult a professional.