1, chloasma, the etiology is related to hormones, sun exposure, stress and genetic constitution, especially for women who are pregnant after childbirth and use oral contraceptives for a long time.

2, cheekbone spots adolescence, marriage, postpartum, menopause, are all stages of cheekbone spots (these stages are stages of hormone changes). The cheekbone spots are mainly above the cheekbones, with cluster spots and slightly gray-blue particle size. The color will be darker after sun exposure.

3, sweat spots, caused by bacterial infection, protrude from the skin surface, mostly on the chin and cheeks. Keep your skin dry and clean, take more baths and change your underwear frequently; Especially for manual workers, we should pay more attention to it.

4, freckles, the most common parts are cheeks and nose, round or oval, or irregular, about 1~6 mm in size, brown spots, ranging from a few to hundreds.

5, sunburn, the main reason for the formation is overexposure of sunlight and ultraviolet rays, that is, photoaging caused by sunlight. It is oval at first, but after a few days, the oval sunburn will turn into fragmentary brown patches.

References:

People's Network-the first classification of freckle! Five types of spots in conditioning prescription