Subconjunctival hemorrhage, usually refers to bleeding under the conjunctiva of the eyeball. When subconjunctival hemorrhage occurs, cold compresses should be applied to the affected eye within 48 hours of the hemorrhage under the direction of a doctor to shrink the capillaries to reduce bleeding; hot compresses can be applied to the affected eye after 48 hours of the hemorrhage to speed up the absorption of the hemorrhage. Ocular subconjunctival hemorrhage is a spot or flaky hemorrhage caused by rupture or increased permeability of subconjunctival blood vessels. Subconjunctival hemorrhage is not an independent eye disease, but an ocular manifestation that can be caused by a variety of reasons, mostly related to ocular trauma, ocular inflammation, hypertension, diabetes, leukemia and other diseases. Generally, subconjunctival hemorrhage can be self-absorbed and does not require special treatment if it is not accompanied by other discomforts. However, if recurrent subconjunctival hemorrhage occurs, it is necessary to go to the hospital in time for relevant auxiliary examinations to clarify the cause of the disease, and according to the specific circumstances of the targeted treatment.