Chloasma, commonly known as liver spots, butterfly spots, pregnancy spots and so on. , is a common skin disease, caused by many factors. The incidence of chloasma is relatively high among Asians. At present, its etiology is not clear, and many factors are involved in its formation. Heredity, ultraviolet radiation and changes in sex hormone levels are the main reasons. The symptom of chloasma is yellow-brown pigmentation spots on the face, which are symmetrically distributed and will be aggravated and persist in the sun. The most common parts are prominent cheekbones, sunburned parts such as forehead, upper lip, nose and jaw, and occasionally it can also occur in forearm. Typical skin lesions are light brown to dark brown spots or patches with clear boundaries, different sizes and irregular shapes, which can be round or butterfly-shaped.

The treatment of chloasma should first avoid photosensitive substances, and chloasma is closely related to sun exposure. Some foods will aggravate the skin's sensitivity to ultraviolet rays. Photosensitive foods, such as mango and spices, such as star anise and wild fungus, will aggravate the sensitivity of skin to ultraviolet rays and cause pigmentation caused by ultraviolet rays. So the first step is to avoid allergic food. The second is to eat more fruits and vegetables, maybe fruits and vegetables containing a lot of vitamin C. Eat more nuts, nuts are also antioxidants, nuts will also be good. Of course, chloasma should pay attention to a balanced diet, and soy products may also be beneficial.

Chloasma can be treated by the following methods: first, strict sun protection, be sure to apply sunscreen when going out; Second, actively treat diseases that cause chloasma, such as endocrine disorders, gynecological diseases, liver and kidney deficiency, hyperthyroidism, etc. ; Third, oral drugs, such as vitamin C, vitamin E, tranexamic acid, glutathione, detoxification and beauty capsules; 4. Skin-changing treatment with fruit acid or supramolecular salicylic acid; Sixth, the mask is inverted; Seven, laser treatment, can use YAG laser, picosecond laser, dot matrix laser, etc.