Some of the types of birthmarks are : stork bites , Mongolian blue spots , strawberry marks , cafÃ au lait spots , congenital melanocytic nevi , and port-wine stains . A number of different types of birthmarks are known that include , but are not limited to , stork bites , Mongolian blue spots , strawberry marks , cafÃ au lait spots , congenital melanocytic nevi , and port-wine stains .