Lower lip discoloration. upper part of lower lip is slight
Kindly upload images
Hello and welcome to ask a doctor service. I have reviewed your query and here is my advice.
It could be mucosal vitiligo.
I request you to kindly upload a few images of the affected area in "Reports Section" so that I am able to have a look and guide you accordingly.
Hope I have answered your query. Let me know if you need any more assistance.