Darkening of the skin around the eyes occurs due to the following reasons First, chronic inflammatory stimulation around the eyes, resulting in local skin pigmentation, commonly seen in blepharitis and eczema of the eyelid skin, requires regular treatment to remove the inflammation and the pigmentation can slowly improve on its own. Second, due to the dilated capillaries under the eyelids, it is associated with late nights and excessive eye use, so take adequate rest and use cold compresses with ice towels to contract the blood vessels, which will soon subside. Third, drug side effects, such as long-term use of anti-glaucoma drugs, such as Trevoprost eye drops, Latanoprost eye drops, will lead to dark circles, after stopping the drug can slowly subside. Fourthly, eye manifestations caused by adrenocortical insufficiency are related to abnormal pigment metabolism in the body caused by degeneration of adrenal gland function.