Pigmentation is a problem for many people. If you want white and smooth skin, don't remove it. Experts from Nanjing Kangmei Plastic Surgery Hospital said that laser can remove pigmentation and is welcomed by beauty lovers. But why does pigmentation occur? Experts from Nanjing Kangmei Plastic Surgery Hospital said that there are many reasons for skin pigmentation, which are mainly related to the usual cleaning care and one's own physical condition. Experts summarized the following points for us: 1. Due to environmental and air pollution, ozone hole produces a large amount of ultraviolet rays to directly irradiate our skin, while human body secretes a large amount of melanin to protect skin cells from oxidation, which leads to pigmentation and dark spots. 2. Food, the nutrition of our skin mainly comes from blood, and whether the nutrition of blood is sufficient and suitable for the survival of cells depends on the quality of food. Alkaline substances can neutralize the acidity of meat and cereal, keep body fluids in an alkaline environment and dissolve toxic substances deposited in cells, so that they can be excreted with urine and accelerate metabolism. Alkaline foods include: fresh fruits and vegetables, raw garlic, black fungus, kelp and so on. 3. Cleanliness of cosmetics and skin. Because cosmetics contain chemicals and heavy metals such as lead, it is easy to cause pigmentation if it is not cleaned properly. 4, photosensitivity, long-term sun exposure and strong radiation light sources will accelerate the synthesis of melanin, leading to dark skin color. 5, special physiology and emotions, women in menstruation, pregnancy (especially pregnancy) due to the stimulation of progesterone, the secretion of corpus luteum in the human body will increase, therefore, it will cause pigmentation or pigmentation. Welcome to click on our online consultation, and we will provide you with professional services! The above is our relevant introduction. Do you understand now? If you have any other questions, please click on our online consultation, and our doctor will give you a more detailed and professional introduction. Finally, experts from Nanjing Kangmei Plastic Surgery Hospital reminded the majority of beauty seekers that they must choose a formal beauty institution during treatment to ensure the final effect and safety of cosmetic surgery.