Hello, Dolichocephaly is a condition where the head is longer than would be expected, relative to its width. Normally, as an infant's brain grows, open borders (known as sutures) between the bones of the skull expand and lead to the development of a normal head shape. If one or more of these sutures close early, it will cause the skull to expand in the direction of the sutures that remain open, which can result in an abnormal head shape. Dolichocephaly is not always serious, since the condition ranges from mild to severe. If it affects brain contour then you have to worry. Consult pediatrician and discuss with regard.