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No, a pterygium is a benign growth and usually harmless. However, in some cases it may harbour cancerous cells.
It is not known exactly what causes a pterygium to develop, but dusty, sandy and sunny environments (with high UV exposure) are contributing factors.
The information on this page is general in nature. All medical and surgical procedures have potential benefits and risks. Consult your ophthalmologist for specific medical advice.
Date last reviewed: 2023-03-03 | Date for next review: 2025-03-03