Skin blemishes are skin pigmentations that appear on the skin. Depending on their origin, they may be pigmented or vascular. Pigments appear by excess production of a pigment called melanin generated from melanocytes (skin cells) and stimulated by solar rays, and may be dark and localized (hyperpigmentation) or pale (depigmentation). Vascular stains are caused by a congestion of the vessels of the skin, which produce red spots on the skin, such as angiomas and teleangiectasias. In any case, it is recommended to consult with a dermatologist the appearance of new spots on the skin, especially if they change color or texture, to rule out that it is a skin cancer. Depending on the type of stain, simple treatments, such as avoiding exposure to the sun and the use of sunscreens, and the application of peeling or laser or depigmenting treatments in the most unsightly spots will be chosen.