The cause and pathogensis of the disease, as many researchers think, are related either with autoimmune desmosis, or with the general infection, or with the allergic reaction caused by local infection and endocrine factors. In addition, there might be some idiopathic causes.According to the theory of traditional Chinese medicine, there are some patterns of syndrome that lead to scleritis.1. Syndrome of Hyperactivity of Lung Heat2. Syndrome of Combinating Stagnancy of Wind, Damp and Heat 3. Syndrome of Hyperactivity of Fire due to Yin Deficiency