Vascular lesions are a group of skin conditions characterized by the presence of dilated or malformed blood vessels under the skin. These lesions can appear as red, purple, or blue marks and vary in size from tiny spots to larger patches. Some common types include spider veins, port-wine stains, and hemangiomas. While they are often benign, they can become more pronounced with time or due to external factors. Fortunately, advanced laser treatments and other noninvasive therapies are available to safely reduce or eliminate these lesions, helping you achieve clearer skin.