What causes black eyelids?

Eyelid color black, normal is due to the following reasons: first, due to eyelid skin pigment nevus caused by congenital abnormalities, generally does not harm the health of the eyes, nor will it cause vision decline. If the feeling has a large impact on the appearance, laser treatment can be used to remove local skin pigment to improve the appearance. Second, due to long-term stay up late, lack of sleep time, mental stress, anxiety, tension, etc. caused by eye telangiectasis, subcutaneous tissue venous blood stasis caused by eyelid blackening, need to use ice towel cold compress to promote regression. Third, due to metabolic diseases caused by, for example, adrenal insufficiency patients will show multiple skin pigmentation, especially in the eyelid part pigmentation is the most obvious, will cause eyelid blackening.