Below is an instruction from Human. Write a response.
    ### Instruction:
    What causes Lichen sclerosus ?
    ### Response:
    What causes lichen sclerosus? The underlying cause of lichen sclerosus is not fully understood. The condition may be due to genetic, hormonal, irritant and/or infectious factors (or a combination of these factors). It is believed to relate to an autoimmune process, in which antibodies mistakenly attack a component of the skin.
    