Small birthmarks can usually be removed by laser treatment and surgery, but some birthmarks do not need treatment. 1. Laser treatment is to use specific wavelength laser to pass through the epidermis and dermis to reach specific parts and play different roles to achieve the effect of removing birthmarks. Different types of lasers and modes of action are chosen for different birthmarks. Overall speaking, laser treatment is safe, does not produce open wounds, mostly does not leave scars, and has less impact on daily life and work. 2… If the birthmark is deep, it is difficult to achieve satisfactory results with laser treatment, or when there is a possibility of malignant lesions, then surgical treatment is needed. For better treatment of birthmarks, it is recommended to go to the hospital for examination to clarify the type of birthmark and choose the appropriate treatment.