CUTANEOUS diseases in pregnancy have received scant attention in the past. Most textbooks of obstetrics devote only 1 or 2 pages to the subject. Except for Bean's work on the spider hemangiomas, and palmar erythema in pregnancy, and their correlation with high estrogen levels1 in the blood, there has been little interest in the subject. Herpes gestationis is usually considered to be the only disease that is exclusively associated with pregnancy, but many dermatologists hold that even this disease is a variant of dermatitis herpetiformis. In this issue (page 577), a papular dermatitis is described which occurs only during pregnancy. The disease is characterized by widely scattered, erythematous papules that itch intensely. Clinically, the disease can be differentiated from herpes gestationis, which is a vesicular rather than a papular eruption, and from dermatitis herpetiformis, the lesions of which usually appear in groups, with a predilection for the extensor surfaces.