Dark circles under the eyes refer to the lower lid area that is more gray in color, giving a feeling of not being rested or unrefreshed. There are several reasons for dark circles under the eyes: 1. Pigmentation of the lower lid skin. The skin of the lower lid is very thin and is prone to inflammation due to a bad environment, heredity or exposure to poor quality cosmetics, which can lead to the formation of hyperpigmentation or discoloration over time. 2. Subcutaneous thickening of the veins or venous stasis. Strain can lead to poor blood circulation, deep versed color of the meridian blood stasis in the orbicularis oculi muscle, through the skin on the formation of dark circles, especially fair and thin skin people are more likely to appear this phenomenon. 3, the shadow of the eye bags. When eye bags appear, especially when more serious bags appear, a shadow will be formed underneath it under the action of light. Ways to solve the dark circles under the eyes: 1.Improve bad habits and pay attention to the correct care of the skin. 2.Improve local skin texture and reduce dark circles by using beam laser, local skin peeling and other methods. 3.By surgery, remove the bags under the eyes and eliminate the shadow formed under the lower lid.