Pregnancy is a state of immunologic, metabolic, endocrine, and vascular changes, which increases susceptibility to various physiological and pathological changes of the skin and the appendages. These changes can be physiological, alteration of the preexisting skin diseases, or specific dermatoses of pregnancy. Physiological changes include altered pigmentation, changes in the collagen and elastic tissues as well as changes in the skin appendages including hair and nails. Preexisting skin diseases may improve or worsen in pregnancy due to alteration in the immunological profile. Some skin disorders are specifically seen during pregnancy and in the immediate postpartum state.