First, let’s recognize the anatomy of the eye. The eye is made up of two parts: the eyeball and the ocular appendages. Among them, the eyeball is a spherical object that consists of two major parts: the wall of the eye and the contents of the eye. What people can see with the naked eye is the front part of the eye, such as the black eye and the white of the eye, while the back part, which cannot be seen, is the fundus of the eye; the eye appendages include the eyelids, conjunctiva, tear ducts, extraocular muscles, orbit, and other five parts. The blood vessels in the wall of the eye and the eye appendages are very densely distributed and rich in blood supply. Hemorrhagic ophthalmopathy is an ophthalmic disease caused by the blood component of the eye and its appendages spilling out of the blood vessels, and it is also a common, frequent and blinding ophthalmic disease. The disease can be caused by a variety of factors, all pathological factors that can cause the rupture of blood vessels in the eye and changes in the permeability of the vessel wall are the causes of hemorrhagic ophthalmopathy, which can be divided into four main causes: traumatic lesions, local vascular lesions, systemic vascular lesions, and neovascularization. Traumatic lesions are the most common cause of hemorrhagic ophthalmopathy and are the main cause of blindness, with mechanical eye trauma being the most common. Local vasculopathy is often the most important cause of hemorrhagic ophthalmopathy and can be classified as vascular obstruction, vascular inflammation, and vascular malformation according to the type of vasculopathy. Systemic vasculopathy is mainly due to diabetes, hypertension, atherosclerosis, hematologic disease, nephropathy, pregnancy toxicity, systemic lupus erythematosus, infectious diseases (orbital cellulitis), and local tumors of the eye. Common sites of neovascularization in the eye include the cornea, iris, vitreous, retina, and choroid. Neovascularization occurs as a compensatory proliferation phenomenon during tissue hypoxia, and it is both an important complication of hemorrhagic eye disease and an important factor causing recurrent hemorrhages. In addition, violent coughing, vomiting, trauma, alcohol abuse, hot baths, and excessive bowel movements can be triggering factors for ocular hemorrhagic disorders.