Dark spots may be caused by nevus of Ota, sun spots, epidermal nevus and so on, which can be treated by laser and surgery. 1. Nevus of Ota: Nevus of Ota belongs to a kind of congenital pigmented birthmark, which can be manifested in the form of black spots. Carbon dioxide laser and picosecond laser can be chosen to remove it, which can crush the melanin particles and promote their absorption and metabolism, thus playing the role of removing dark spots. 2. Sun spots: mainly due to long-term stimulation by ultraviolet rays, resulting in skin aging and pigmentation, thus leading to dark spots. It is necessary to do a good job of physical sunscreen to avoid the aggravation of sun spots. Fractional laser, photorejuvenation and other photoelectric treatments can be chosen to remove them. 3. Epidermal nevus: when the epidermal nevus is slightly larger in size and more superficial in location, it will also be regarded as dark spots. Usually, it needs to be removed by way of carbon dioxide laser, high-frequency electric knife or surgical treatment. In case of dark spots, it is recommended to go to the hospital in time to find out the specific reasons for the formation of spots, and then actively listen to the professional doctor’s advice for reasonable treatment.