Freckles are hyperpigmented spots that occur on the facial skin and are mainly light to dark brown in color. The clinical manifestations of freckles are varied, and the lesions are mainly punctate, round, ovoid, and irregular; the size is mainly pinpoint to chestnut size, and some of them can be larger; and the color is mainly light brown to dark brown. Freckles are mainly found on sun-exposed areas such as the face, and occasionally on the neck, shoulders and the back of the hands. Every year in summer, it is obvious due to the strong sunlight, while in winter, it is often not obvious or even almost invisible, and patients usually have no self-conscious symptoms. Freckles belong to autosomal dominant hereditary disease, but it has no effect on the health of the body, so there is no need for special treatment for freckles. If there is a need for cosmetic treatment, it is necessary to go to the hospital for laser treatment in time.