[Specific pregnancy dermatoses--a simplified clinical classification].

The terminology of the specific pregnancy dermatoses is confusing. Several names have been used for the same clinical conditions or individual reports have been described as special entities. In order to get a more practical classification from the clinical point of view, four broad categories of specific dermatoses of pregnancy are proposed: herpes gestationis, polymorphic eruption of pregnancy, prurigo gravidarum and autoimmune progesterone dermatitis.