Eye protrusion mostly refers to eyeball protrusion, which may be caused by high myopia, hyperthyroidism, orbital tumor and other diseases. 1. High myopia: the eye axis of patients with high myopia is prolonged beyond the normal range, and the patients may have protruding eyeballs, which may be accompanied by scleral chylothorax, retinal degeneration and other myopic lesions. 2. Hyperthyroidism: patients with hyperthyroidism may suffer from weight loss, protruding eyes, emaciation, excessive sweating, etc. In addition, patients with hyperthyroidism may also suffer from dizziness, vomiting, insomnia and other manifestations. 3. Orbital tumor: patients with orbital tumor may have protruding eyes because the mass in the orbit squeezes the eyeball. It is recommended that patients with prominent eyeballs should consult the doctor in time to evaluate their conditions and follow the doctor’s instructions for treatment.