There are several possibilities for yellowing of the whites of the eyes as follows: 1. The most common is lid fissure spot, which is related to wind, sun, light stimulation, and age. It most often occurs at the corneoscleral junction and is seen as a small gray-yellow raised nodule, like a lipid deposit in the whites of the eyes. The lid fissure is asymptomatic, does not affect the eye and does not require treatment. 2. acute conjunctivitis recovery period, the white of the eye is obviously congested during acute conjunctivitis, the congestion is gradually absorbed during the recovery period, manifesting as a slightly yellow white of the eye, after which the white of the eye returns to normal color. 3. subconjunctival hemorrhage, subconjunctival hemorrhage is caused by the rupture of capillaries in the conjunctiva, absorption takes 7-12 days, the white of the eye at the hemorrhage changes from red to yellow and is finally absorbed. 4. liver and biliary Scleral yellowing caused by disease, need to treat the original disease.