Cyanosis under the eyes should be treated specifically according to the part of the cyanosis: First, cyanosis under the eyes: cyanosis under the eyes refers to the area of the lower eye bags, which is the lower eyelid area. This condition may be due to eye trauma, or the eye eyelid skin is thin and the subcutaneous veins are revealed. It is also possible that some people have obvious dark circles under their eyes, revealing the lower eyelid area to be cyanotic. Second, cyanosis on the sclera: Cyanosis under the eye refers to cyanosis on the sclera, which is caused by pigmentation or pigmented nevi on the sclera, etc. Because the scleral tissue is thin, the color of the choroid is seen through, especially the color of the choroidal vessels. Clinically, it is mainly observed and mainly presents on the white of the eye, that is, below the sclera of the eye, where irregular greenish gray or grayish brown or dark black markings can be seen, and this kind may appear at birth. It does not change much with age, mainly because the sclera is thin and the color of the deeper tissues can be seen. It does not need to be treated clinically, and there is no good way to deal with it, and it is mainly based on observation. If there is obvious eye pain, eye swelling, and poorer vision, it is important to go to the ophthalmology department for fundus examination in a timely manner, especially for small children, and to rule out congenital developmental abnormalities.