Bleeding from the corner of the eye is caused by subconjunctival hemorrhage, which can be caused by the following kinds of reasons: first, due to accidental eye rubbing, coughing, sneezing, constipation, hypertension, arteriosclerosis, resulting in the rupture of small blood vessels in the conjunctiva, thus forming a sheet of bleeding, which is not harmful, looks very obvious, does not lead to vision loss or eye health hazards, and can be absorbed naturally in about half a month. Secondly, due to blood system diseases that cause abnormal coagulation function, the small blood vessels of the white eye appear spontaneous bleeding caused by, for example, hemophilia, thrombocytopenic purpura, aplastic anemia, vitamin K deficiency, need to timely go to the hematology department for treatment. Third, bleeding caused by local inflammation, which causes damage to the walls of small blood vessels, such as epidemic hemorrhagic conjunctivitis.