Autoimmune and scarring hair loss are related to immune system dysregulation of the hair follicle, potentially triggered by environmental factors and gut dysbiosis.

“the one that we didn't talk about are the autoimmune forms and the scarring forms of hair loss and those more so relate to dysregulations to the immune function of the follicle themselves the collapse of immune privilege so that the body begins to attack the hair follicles and the strongest evidence that we have uh behind these things is that there's some sort of environmental factor triggering them and it very closely corresponds to gut dysbiosis”