In 1982, Mulliken and Glowacki classificated congenital vascular lesions in two biological groups with different treatment, evolution and prognosis: Haemangiomas and Vascular malformations. We have seen 230 patients, 145 with haemangiomas and 85 with vascular malformations (74 with low flow and 11 with high flow). We have reviewed clinical, evolutive and ecographic findings. Depending on the type and localization of the lesion, we completed the study with CT, MRI and angiography. Among all the patients with haemangiomas; 45 were treated with local or systemic steroids because of bleeding, ulceration or affection in functional areas. In two more, we used interferon alfa 2a because of Kassabach-Merritt Syndrome. 23 were operated on with good aesthetic results. Patients with vascular malformations were managed with embolization, sclerotherapy, surgical approach or conservatively. Capillary malformations were treated with lasertherapy. We emphasize in correct classification of vascular lesions prior to start diagnosis, treatment or parents information.