Retinal hemorrhage, often referred to as fundus hemorrhage, can be caused by localized lesions in the eye, such as lesions in the retina itself or high myopia, or it can be caused by systemic diseases, such as high blood pressure and diabetes mellitus, that lead to retinopathy and cause fundus hemorrhage. Patients with fundus hemorrhage caused by hypertension, atherosclerosis and diabetes need to be treated for the symptoms of retinal hemorrhage in addition to actively treating these primary diseases. For example, in mild cases of retinal hemorrhage caused by retinal vein obstruction, a combination of Chinese and Western medicine is used to reduce blood viscosity, improve microcirculation, and promote hemorrhage absorption. In severe cases, when the retinal capillary non-perfusion area, i.e. ischemic area, reaches a certain area, retinal photocoagulation should be performed to prevent the formation of neovascularization in the optic disc, retina, iris and angle of the eye, which will lead to further proliferative changes of the retina and complications of neovascular glaucoma. When the hemorrhage leads to vitreous blood accumulation that cannot be absorbed for a long time or retinal proliferation and pulling that leads to severe visual function, vitreous surgery is needed. In summary, retinal hemorrhage is treated with a combination of Chinese and Western medicine in mild cases, and fundus laser or even vitreous surgery in severe cases. Retinal hemorrhage can be caused by a variety of reasons, when there is a fixed round black shadow in front of the eyes, which does not float with the rotation of the eyes, or red light flashes in front of the eyes, vision suddenly decreased and other symptoms, you need to consult a doctor in a timely manner.