Fractional laser has the effect of improving enlarged pores, hyperpigmentation, capillary dilatation disorder and depressed scars. 1. Enlarged pores: If patients have enlarged pores, fractional laser can stimulate and induce collagen reorganization and regeneration to help improve skin quality and relieve enlarged pores. 2. Hyperpigmentation: Fractional laser can also alleviate facial hyperpigmentation, for facial acne marks, chloasma, freckles, dull skin and other hyperpigmentation phenomena, through the fractional laser, it can blast the subcutaneous pigment particles, and then through the human body’s metabolism, so as to exclude from the body, and improve the hyperpigmentation. 3. Capillary dilatation: If the patient has capillary dilatation, it can also be treated by way of fractional laser, based on the principle of focal photothermal effect of laser technology, it can produce multiple micro-treatment holes in skin tissues, thus alleviating the phenomenon of subcutaneous capillary dilatation. 4. Sunken scars: for facial sunken scars, they can also be relieved by fractional laser, but it takes several treatments to see the effect. Although fractional laser has the above effects, it should be prohibited for patients with keloid, mental illness and serious basic diseases, and it is forbidden for those who are sensitive to light and those who have used light-sensitive drugs. It is recommended that patients go to regular hospitals for consultation and fractional laser treatment under the guidance of professional doctors.