Yellow patches in the eyes are usually due to blepharospasm, conjunctival pigmented nevus and other causes. The occurrence of blepharospasm is closely related to aging factors, in addition to wind and sand irritation, bright light irritation, etc. are also causes of blepharospasm. The essence of blepharospasm is the degeneration and hyperplasia of conjunctival tissue, which will form a raised plaque in the white eyeball area and is yellowish in color, and can be surgically removed if it affects the appearance. Conjunctival pigmented nevus is usually caused by congenital developmental abnormalities, will also form a yellow patch in the white eyeball area, related to the local conjunctival cells have pigment accumulation, usually do not need to be treated, if affect the appearance can also be surgically removed. Patients need to go to the ophthalmology department of the hospital as soon as possible for examination to clarify what causes the nevus, and then can take targeted treatment to eliminate the symptoms.