Causes of Lichen Sclerosus
Lichen sclerosus research scientists are not sure what exactly causes lichen sclerosus, although they think that an overactive immune system may play a role. Some people may have a genetic tendency toward the disease, and studies suggest that abnormal hormone levels may also be a factor. Lichen sclerosus has also appeared at sites of previous injury or trauma, where the skin has already experienced scarring or damage.
Lichen sclerosus is not contagious. You cannot "catch" it from another person.