Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Leukonychia totalis ?
    ### Response:
    Leukonychia totalis is a nail condition characterized by complete whitening of the entire nail plate. It is usually inherited in an autosomal dominant manner. Less commonly, it may be inherited in an autosomal recessive manner, or acquired (not inherited) during a person's lifetime.
    