Lasers being used to treat vascular lesions are capable of treating a variety of birthmarks, dilated vessels such as is seen after chronic sun exposure or in medical conditions such as rosacea, red noses, red cheeks, vascular growths such as hemangiomas, and some scars.
Using different wavelengths, the same concept may be applied to the treatment of pigmented lesions. Lasers with pulse duration of 1 billionth of a second are quite effective in treating many pigmented lesions, such as a variety of brown or black birthmarks, sun induced freckle-like pigmentation, café-au-lait birthmarks, and traumatic or decorative tattoos. Lesions may disappear entirely or require a series of treatments and there is rarely any textural, pigmentary, or scarring changes associated with this.