Retinal hemorrhage can be caused by simple eye diseases, such as retinal vein obstruction, or by systemic diseases, such as diabetic retinopathy and hypertensive retinopathy. Retinal vein obstruction can be seen as large, multiple flame-like hemorrhages in the retina, requiring fundus angiography, oral medication to promote blood absorption, such as Yunnan Baiyao tablets, and laser photocoagulation. Diabetes mellitus, hypertension and other systemic diseases can cause retinal hemorrhage like, according to the staging and severity of the hemorrhage treatment, such as early lesions with small amount of hemorrhage, can be observed, regular review of the fundus, to control the indicators of the primary disease can be. If the hemorrhage is severe and the visual impairment is obvious, laser photocoagulation treatment is needed under the guidance of fundus angiography, and the laser treatment needs to be carried out 4-5 times.