Scarring alopecias, also called cicatricial alopecias, are a group of dissimilar disorders that each result in irreversible hair loss. This permanent hair loss can stem either from a primary or secondary process.
Primary cicatricial alopecia conditions are usually non-scarring initially (a fact that makes diagnosis quite challenging) with the scalp erupting into colored spots and lesions. In due course of time, the scalp takes on a patchy appearance – irregular bald patches appearing in the midst of normal to sparse growth of hair.
In its advanced stages, the hairline can recede and the bald patches grow, ultimately leading to extensive and even total scalp baldness. New discoveries and research findings are adding to our knowledge of these disorders.