There are currently two methods of treatment for pterygium, one is medication and the other is surgery. When the pterygium has not invaded the black part of the eye, it does not affect the vision and can be treated without urgent surgery. If combined with trachoma and other chronic conjunctivitis, the pterygium is easily congested under the stimulation of inflammation, and it grows fast, so it can be treated with medication, usually with antibiotics and hormonal eye solution. From the Chinese medicine point of view, the diet should be light, less chili and other irritating foods, and should be prohibited from smoking and alcohol. Surgery should be considered when eye irritation or rubbing sensation is obvious, or when the pterygium grows into the black eye and blocks the pupil area affecting vision. To prevent recurrence, surgery is best performed under a microscope to completely remove the pterygium tissue and to make the corneal wound as smooth and dry as possible. Why is pterygium prone to recurrence after surgical removal? The conjunctival epithelium of the pterygium tissue may be thickened or thinned, occasionally showing dysplasia. The subepithelial fibrovascular tissue proliferates and collagen fibers degenerate, and the layers of the cornea are disrupted due to fibrovascular invasion. There are often mild postoperative inflammatory changes, which, combined with the irritating effects of external wind and sunlight, and the absence of healthy stem cell tissue at the corneal rim to prevent its growth, make it prone to recurrence. How can I prevent pterygium? The main prevention of pterygium is to avoid the stimulation of smoke, dust, sand and other factors as much as possible, and to wear protective glasses for protection if the work requires long-term outdoor work. If you have trachoma or conjunctivitis, you should take medication in time. You should also get enough sleep, have a regular life, eat light food, eat less stimulating food such as chili peppers, prohibit smoking and alcohol, and keep your bowels open.