@andwho
Yes, it is true that Lichen Sclerosus (LS) can cause sores, as well as tears, fissures, and blistering—particularly in the vulvar and anal areas.

The exact cause of LS is not fully understood. However, it is widely believed to involve an autoimmune component, similar to other autoimmune conditions such as thyroid disease. In women, hormonal factors—especially low estrogen levels—may also play a role, although they are not considered the primary cause.

LS is also often mistaken for Candida (yeast infection), as both conditions can cause itching, irritation, and discomfort. However, LS does not respond to antifungal treatments and requires different management, typically involving topical corticosteroids.

In my most recent reading on LS, including several research papers, I found that:
https://rarediseases.org/rare-diseases/lichen-sclerosus/