Yellowing of the white eyeballs is usually caused by conjunctival nevus pigmentosus, conjunctivitis, liver disease and other reasons. Conjunctival nevus pigmentosus: it is caused by congenital developmental abnormality, it will form a patchy yellow lesion in the white eyeball area, usually there will be no obvious changes, mainly for observation, if it affects the appearance, it can be surgically removed. Chronic conjunctivitis: may lead to pigmentation in the conjunctival tissue, causing diffuse yellowing of the white eyeball. Inflammation needs to be eliminated by anti-infective treatment. Liver disease: Because of abnormal liver function and elevated bilirubin in the body, patients may show yellowing of the white eyeballs and conjunctival congestion. It is recommended to go to the ophthalmology department of the hospital as soon as possible for examination to clarify the specific causes, and then take targeted treatment to eliminate the symptoms.