Summary.— In 2168 infants, 17 cases of strawberry mark were followed from the earliest neonatal stage. Three angiomata began as telangiectatic lesions surrounded by a pale halo; red puncta then appeared on the dilated vessels. They coalesced and became papular, and red plaques were formed. Three angiomata began as a pale patch; telangiectasia then appeared on this patch. One angioma, first seen as a bruise-like macule. transformed into a nodular lesion. One angioma began as a simple and uniform erythema and subsequently became nodular. Two infants already showed early haemangiomata at our first examination. In 5 infants, on whom no abnormality was found within the first week of life, a strawberry mark was found later. Two pale patches in the neonatal stage remained abortive angiomata. The haemangiomatous component developed in the majority of cases between the third and fifth weeks of life.