There are more types of spots, some of which can be completely removed by laser and some of which can only be lightened by laser. There are more types of spots, the common clinical freckles, chloasma, age spots. In addition to these, there are hormone spots, lead and mercury spots, pigmented spots, dermal spots and so on. Skin pigmentation can be treated by laser, which has strong penetrating power and can reach the bottom layer of the skin and break the pigment cells, which can achieve the effect of lightening or completely eradicating pigmentation. Brownish-blue patches or dermal spots or green birthmarks on both sides of the cheekbones due to sun exposure, cosmetic allergy and trauma can be significantly improved through persistent laser treatment. In case of chloasma, combined treatment with drugs and photoelectricity is needed, and the treatment is long-term. Freckles are related to family heredity with increasing age and not paying attention to sun protection, which may lead to more and more color spots. The effect of laser pigmentation treatment is better, but generally cannot be maintained for a long time. If you usually do not pay attention to sun protection, freckles may reappear. To summarize, there are more types of spots and more treatment methods, whether they can be removed completely is related to the type of pigmentation. It is recommended to go to the dermatology department of a regular hospital and ask the doctor to make a suitable treatment plan.