First of all, by definition.

Chloasma, also known as liver spot and butterfly spot, is a symptom of facial melanosis, which is caused by the increase of melanin in the skin and cannot be effectively eliminated in time. Because chloasma has no other uncomfortable symptoms except unsightly to human body, it is usually considered as a general capacitive skin lesion.

Freckles are dark brown spots that occur on the face and spread to the face. There is no subjective feeling or other influence except that it is detrimental to the appearance.

Second, from the characteristics of spots.

chloasma

1. It usually occurs around the cheekbones, forehead and mouth, showing a butterfly shape, so it is also called "butterfly spot".

2, when it was first formed, it was very weak and could not be seen, but after a long time, it will become deeper and deeper. The color changed from light gray to dark brown.

3, the size is uncertain, the edge of the spot is clear, the surface is smooth, there is no inflammatory reaction and no pain.

4. Regular use of oral contraceptives and pregnant women will cause "pregnancy spots" on the face, which is also a kind of chloasma.

5. Women with chloasma are usually accompanied by menstrual disorders, premenstrual bloating or chronic diseases.

6. Male patients with chloasma are often accompanied by gastrointestinal dysfunction.

7. Sunburn caused by excessive sunlight is also a kind of chloasma.

spot

1. Small brown spots from the tip of a needle to the size of a grain of rice are named for their shape and color like bird eggs.

2. Freckles are common in sunburned parts such as face, neck and arms, and the face is mostly scattered on cheeks and bridge of the nose.

3, the number of freckles is uncertain, and there is no fusion between them.