Age spots – is it really because of old age? Age spots, whose scientific name is seborrheic keratosis, are common clinical skin tumors that commonly occur in the elderly and increase in incidence with age. Typical lesions appear as well-defined pink, tan, or brown plaques that may evolve into papules or warts adherent to the skin, with an “adhesive appearance” and hyperkeratotic scales. Although age spots can appear on clothing-covered areas, they are more prevalent on light-exposed areas, and residents of tropical regions have a higher incidence and earlier age of onset. Chloasma – I am not a yellow-faced woman Chloasma is a kind of acquired skin disease with abnormal pigment metabolism of facial skin. Clinically, it mainly manifests as light brown to dark brown blocks symmetrically distributed on the face, mainly on the cheeks, cheeks and forehead, with different sizes, clear or diffuse edges, no self-conscious symptoms, and sometimes can become butterfly wing-shaped. The cause of the disease is still unclear, and it may be related to endocrine disorders caused by pregnancy, oral contraceptives and certain chronic diseases, cosmetics, ultraviolet rays and certain drugs. Treatment: Freckles, age spots and nevus of Ota can get good results after several laser treatments, but some patients have the chance of recurrence, and freckles and age spots patients need to pay attention to sun protection in daily life. The treatment effect of coffee milk spot and melasma varies greatly among different patients, requiring several treatments and prone to recurrence. Tranexamic acid is also effective in treating melasma to a certain extent. Mongolian spots usually fade away by themselves in childhood and do not require treatment. The treatment of wine discoloration is usually carried out by pulsed dye laser using hemoglobin as the target color base, aiming at destroying these abnormal blood vessels.