Hi, Esperanza ~
I'm responding to your question because I was diagnosed with
Oral Lichen Planus over 20 years ago. I've always been completely asymptomatic so it wasn't a problem, just something noted on my dental history chart. Recently, my dentist decided that, although nothing had changed, I should have the lesions (small and not visible to me, even when performing my oral hygiene) biopsied 'just in case'. I did some internet research and found that Oral Lichen Planus has about a 5% rate of malignancy. So, last year I had the biopsy - and it was 'unremarkable'. My dentist said that if it ever 'flares up', steroids can take care of it. Good to know.
The DMD that performed the biopsy said that Oral Lichen Planus is an auto-immune disease but that I'll probably never know the actual cause and not to worry about it if I'm asymptomatic because my semi-annual dental checkups will keep it under professional observation. He didn't see any connection with my AN but admitted that it could be related in a very general way, although I've never had any other type of auto-immune problems in my 66 years, so, who knows?
I think the 'stress' explanation is overused as a 'catch-all' rationale when doctors don't really know the actual cause of something. We all know that stress is somewhat debilitating and certainly an obstacle to maintaining good overall health. Blaming stress for auto-immune diseases is a bit too 'easy', but perhaps I'm just cynical....or it could be stress.
Jim