The black pigmentation under the eyes should be treated according to its causes, such as physiological phenomenon, pigmentation, vascular dilation, etc., and choose general treatment or laser treatment after clear diagnosis. 1. Physiological phenomenon: dark pigmentation under the eyes may be due to prolonged late night, lack of sleep, endocrine disorders, it is recommended that you need to improve the habits of work and rest, to ensure that you get enough sleep, go to bed early and get up early, and improve the symptoms through a comprehensive management. 2. Hyperpigmentation: The phenomenon of hyperpigmentation can be treated by laser therapy, such as picosecond laser and intense pulsed light, which can break down the pigment particles and improve the pigmentation of under-eye bags. 3. Dilated blood vessels: the precipitation of melanin under the eyes may be due to dilated blood vessels, you can choose to take laser to improve the state of blood vessels, so as to achieve the therapeutic purpose. There are many reasons for the precipitation of melanin under the eyes, it is recommended that patients go to the hospital in a timely manner, in accordance with the doctor’s instructions to take standardized treatment program, not to private treatment, so as not to lead to adverse consequences.