Prurigo gestationis is not an uncommon disease in pregnancy．It has an estimated prevalence of 1 in 300 pregnancies~1.Prurigo gestationis is characterized by small,eryrthematous or skin-colored papules that are extremely prufitic．It has usually been considered as a benign disorder that influences neither the pregnancy nor the newb child,and recurrence in subsequent pregnancies is a rare occurrence~2．