”Subconjunctival hemorrhage”, ruptured small blood vessels of the conjunctiva bleeding gathered under the conjunctiva is called subconjunctival hemorrhage, the shape of subconjunctival hemorrhage varies, size varies, often into flakes or clusters, there are also waves of global conjunctiva into a large area. A small amount is bright red, and a large amount is bulging purple. The bleeding is mostly caused by inflammation or trauma, and spontaneous bleeding is mostly seen in the elderly, hypertension, diabetes, blood disorders, etc. The spontaneous symptoms are not obvious at the time of onset, and are usually found mostly by others. The bleeding may have a tendency to increase in those within 3 days of onset, and can generally subside in about 1 week without leaving traces.