1, congenital or acquired eyelid pigmentation increased; The patient's orbicularis oculi muscle is thick, or the pigment in the eye skin is deeper and richer than that in the adjacent skin, so it appears as dark gray eyes.

2, the eyelids are aging and slack, and the skin is wrinkled together, which leads to deepening skin color; The appearance of bags under the eyes caused a shadow.

3. The inner and lower side of the orbit is sunken to form a lacrimal groove and then forms a shadow, which looks like dark circles.

4, eyelid vein blood flow retention causes skin expression to deepen.

5. Penetration of pigment particles in cosmetics: For people who often use cosmetics, some dark cosmetic particles may penetrate into the eyelids. Over time, dark circles appear. There are other reasons. Some of these reasons may be comprehensive.

6, abnormal diet, iron deficiency.

7. Overthinking or staying up late leads to insufficient sleep.

8. Natural dark circles: Some people are born with dark skin around their eyes, which is usually more common in whites. This kind of dark circles is difficult to fade, so it is recommended to use a leisure cream for better effect.

9. Patients with allergic rhinitis: Patients with allergic rhinitis will also have dark circles.