A 50-year-old woman with a yellowish and dark complexion is usually caused by aging skin, and may also be caused by chloasma and anemia. It is necessary to go to the hospital in time to see a doctor, after clarifying the cause of the disease, treatment, treatment usually includes drug treatment and laser treatment. 1. When a woman reaches 50 years old, her skin function declines and there are too many free radicals in her skin, which makes her skin oxidize and age, and her color becomes dull and yellowish. Women who stay up late for a long time and are emotionally stressed and depressed will have a more pronounced yellowing and darkening of the skin. After entering middle age, women can supplement vitamin C and vitamin E daily, take good care of their daily life and pay attention to sunscreen to alleviate yellowing and darkening of the skin. 2. Chloasma is related to heredity, sun exposure, emotions and other factors. It is manifested as light brown spots and patches on the facial skin, and some of the spots can be fused into a large area with dark color. Chloasma can be treated with hydroquinone cream or azelaic acid cream externally, and dye pulse laser and Q-switched ruby laser can also be done. 3. There are many reasons for anemia, most of which are related to the lack of nutritional elements, such as iron, folic acid, vitamin B12 and so on. Anemia can lead to yellowish color, weakness, panic and other symptoms. You can go to the hospital to check the anemia, and correct the anemia under the guidance of the doctor. It is recommended that patients go to the regular hospital in time, under the guidance of the doctor targeted treatment, avoid self-medication, avoid going to the beauty salon without formal qualifications.