Fundus hemorrhage is a common clinical condition in ophthalmology. It is not an independent eye disease, but a condition shared by many eye diseases and certain systemic diseases. Depending on the cause and location of fundus hemorrhage, the prognosis varies. The clinical symptoms of fundus hemorrhage include: a. Blurred vision, or dark shadows floating in front of the eyes, visual distortion, eye discomfort, swelling and pain. Funduscopic examination may reveal blood accumulation in the vitreous and retinal hemorrhage. Third, there may be myopia, history of hypertension, history of diabetes, retinal vascular obstruction or history of trauma. There are more causes of fundus hemorrhage, and the hemorrhage usually comes from the retina, choroidal broken vessels or neovascularization. These include: 1. Retinal vascular disease: retinal hemorrhage is most common with capillary lesions, mainly due to damage to the capillary lining and increased permeability, causing blood to leak out; followed by hemorrhage from venous aspects, mostly occurring in local or systemic lesions, sluggish or stagnant venous blood flow, changes in blood viscosity, venous thrombosis, inflammation of the venous wall, etc.; others are also seen in cases of vascular sclerosis or vascular embolism. These include retinal perivasculitis, retinal vein obstruction, Coats disease, diabetes mellitus, etc. 2, choroidal neovascular disease: age-related macular degeneration, idiopathic CNV, etc. 3, eye trauma or surgery: eye trauma or surgery causes intraocular hemorrhage when the blood vessels in the eye wall rupture, causing traumatic retinal hemorrhage. 4, Inflammatory diseases or immune complexes invade the vessel wall, such as retinal perivasculitis, optic disc vasculitis, etc. can cause fundus hemorrhage. 5, other fundus diseases: such as: retinal fissure, congenital retinal folds, retinal hemangioma, uveitis and other damage to the retinal vessels may cause hemorrhage. 6, systemic lesions: retinal hemorrhage caused by hypertensive retinal atherosclerosis, nephrotic retinopathy, and diabetic retinopathy, leukemia, changes in blood composition, etc. The prognosis and the impact on vision vary depending on the cause and location of retinal hemorrhage. A small amount of hemorrhage can be completely absorbed without affecting vision and without other complications (e.g., hypertensive fundus hemorrhage, branch vein obstruction, etc.). If there is a large amount of bleeding, or repeated bleeding, blood enters the vitreous causing vitreous clouding and the formation of proliferative vitreoretinopathy (such as diabetic retinal hemorrhage, etc.), vision can be severely impaired or even blind. Treatment: There are many causes of fundus hemorrhage, and the treatment varies. First of all, treatment should be directed at the cause. Different treatment methods for fundus hemorrhage caused by different causes are different, and the cause must be identified first, and treatment methods should be selected according to the cause. If there is more bleeding, try to rest in the early stage. Take drugs that promote blood absorption. If the blood is not completely absorbed, causing vitreous proliferation and retinal traction, vitrectomy must be performed.