Unilateral or bilateral orbital protrusion is the most common symptom of orbital disease, and its causes generally include the following: 1, tumors Various tumors caused by such as hemangiomas, cysts, malignant tumors, etc. 2, vascular malformations such as arteriovenous fistulas, orbital varices 3, thyroid-related ophthalmopathy This is the most common cause of unilateral or bilateral orbital protrusion. There may be hyperthyroidism or no 4, trauma various trauma caused by fracture, hematoma 5, inflammation such as inflammatory pseudotumor, cellulitis, abscess 6, congenital malformations such as craniofacial bone development anomalies neurofibromatosis, etc. At present, various imaging diagnostic methods and doctors’ clinical experience, more than 95% of the protruding eyes can be examined to find out the cause of the protruding eyes, and then treated according to the situation.