The yellowing of the eyeballs is mainly caused by pathological factors or physical factors. 1. Pathological factors: when liver disease occurs, bile may be stagnant and cannot be discharged out of the body normally, jaundice may occur, which may be manifested as yellowing, in addition to yellowing of the sclera, the skin, fingers, and nails may also be manifested as yellowing. 2. Physical factors: under the influence of long-term exposure to light, ultraviolet rays, wind and other related physical factors, yellowing of the white eyeballs in the blepharosphenoid region may occur. If the above situation occurs, lift the eyelid above, the sclera in the blocked position, is white, the white eyeballs in the exposed area, will show yellowing, which does not belong to the pathologic disease, just poor appearance, no need to worry too much. If yellowing of the eyeballs occurs, it is recommended to closely observe the situation, and consult a doctor in time for any abnormalities, complete the relevant examinations, and carry out symptomatic interventions according to the doctor’s instructions.