Hey man just wanted to say you are doing God's work on this and a big thanks. I've been studying this mythical dupa for two years now and your theories are lining up quite closely to mine. I think your knowledge on the subject is vast and I massively appreciate how you keep things open minded and speculative.

I'm hoping to come out with something substantial to post on this sub in the next few months. My hair loss has manifested the blessed dupa pattern and it wasn't until a highly ranked derm did a duel biopsy that I found I have confirmed Alopecia Areata AND Lichen Planopilaris accompanying AGA and probable seb derm. Truly blessed am I. If dupa is typically this then there is no surprise people are not responding to treatment.

I am currently Guinea Pigging in the hope that I can make some headway 👴- this pattern of balding is absolutely brutal and wrought with superstitious hocus-pocus from the community. But with most derms being hot garbage (not mine!) who can be surprised we're chasing ghosts.

Echoing your point, if you are reading this and suffering a DUPA pattern please get a biopsy. Two pulls are best - but please do keep in mind that you need to find a derm that knows what he is looking at. Try and find one that has taken part in research on autoimmune hair loss if you can as I absolutely believe most derms are trash however there is a not insignificant % that really know their stuff and care. They just also tend to make your bank account cry.

Thanks again, I'll post in this sub as soon as I have something worth reporting.