Light brown birthmarks in the clinic there are mainly 3 diseases, the first is coffee spot, the second is pigmented nevus, the third is pigmented hairy epidermal nevus. 1, coffee spot: can be used to remove the method of q-tuning laser, commonly used wavelengths of 532 nm, 694 nm and 755 nm laser, most of the effect is relatively good, through the laser can be completely removed. For pigmented nevus, the effect of laser treatment is not particularly ideal, it is recommended to use surgical methods to remove. 2, pigmented nevus of hairy epidermis: there are also light brown lesions, and often in the lesions on the hair heavier, and there are small pimples, this situation often need to be depilated, tuning q laser and other methods of integrated treatment. 3, light brown birthmarks: according to the clinical manifestations, the exact diagnosis to select the appropriate treatment The method is to choose the appropriate treatment according to the clinical manifestation and exact diagnosis.