Conjunctival hemorrhage is generally referred to as subconjunctival hemorrhage, which is mainly manifested as red or bright red hemorrhage under the conjunctiva of the eye in the form of dots or patches, and is usually not accompanied by obvious pain. Subconjunctival hemorrhage refers to a large or small patch of bright red or dark red hemorrhage under the surface of the white layer of the eye; at the onset of no pain, vision loss and other symptoms, the patient does not look in the mirror will not be noticed, a few patients will be accompanied by a slight tingling. The cause of subconjunctival hemorrhage is capillary rupture, which is mainly caused by people coughing violently, defecating too hard and other situations that lead to increased pressure and cause capillary rupture. If there is no obvious discomfort, subconjunctival hemorrhage will not cause obvious damage to the body, and it can be absorbed by itself in about 7~12 days, and during the recovery period, people should avoid lifting heavy objects and using the eyes for a long time. If subconjunctival hemorrhage is not absorbed for a long time or accompanied by discomfort, it is recommended to go to the ophthalmology department as soon as possible to exclude other pathologies, so as not to delay the condition.