Black spots on the face should be considered as different diseases according to the age. The black spots on the face of children are mainly considered to be freckles, which are related to sunlight and heredity, and mainly appear as scattered light brown to dark brown spots on the face symmetrically without any conscious symptoms, often aggravated in summer and reduced in winter. This disease has a great relationship with heredity, sun exposure, emotion, and is more common in women than men. It appears as symmetrical light brown to dark brown spots on the skin of the face, with a symmetrical butterfly-shaped distribution, and some of the spots can be fused into patches without pain or itching. Some women can have outbreak of chloasma after pregnancy, but most of them can fade away by themselves after delivery. The main symptom is the appearance of scattered dark brown to black spots or patches on the face, protruding from the skin, and the spots can gradually fuse.