Laser surgery is a type of surgery that uses a laser to cut tissue A range of lasers such as erbium, dye, Q switch lasers and CO2 are used to treat various skin conditions including scars, vascular and pigmented lesions, and for photo rejuvenation. The laser surgeries for dermatology often bypass the skin surface. The principle of laser surgery for dermatologic problem is based on SPTL (selective photo thermolysis). The laser beam penetrates the skin until it encounters chromophore which absorbs the laser beam. After absorption of the laser beam, heat is generated to induce coagulation, necrosis of the targeted tissue, this result in removal of unwanted tissue by laser surgery.