The appearance of red blood clots in the white of the eye may be caused by physiological factors, or pathological factors (such as eye trauma, ocular inflammation, subconjunctival hemorrhage, etc.). 1. Physiological factors: such as staying up late, excessive use of the eyes, etc. caused by eye fatigue, conjunctival capillary rupture symptoms of redness in the white of the eye. Adjusting the work and rest in time, the symptoms will be gradually relieved and disappear after the eyes have rested. 2. Pathological factors (1) Eye trauma: trauma can cause blood congestion or rupture of blood vessels in the conjunctiva, which can be manifested as redness and blood clots in the white of the eye, and can also be accompanied by pain. (2) Ocular inflammation: such as allergic conjunctivitis, bacterial conjunctivitis, keratitis, blepharitis, etc., mostly related to bacterial and viral infections as well as allergen stimulation. It causes vascular congestion and dilatation on the surface of the conjunctiva, which can be manifested as blood clots, hemorrhage, foreign body sensation, pain and other symptoms at the white eye. (3) Subconjunctival hemorrhage: Commonly found in the elderly, it is mostly related to subconjunctival hemorrhage caused by violent coughing and excessive rubbing of the eyes, etc. It can be manifested as the appearance of blood clots at the white part of the eye, which can be absorbed by oneself usually. If you find blood clots in the white part of the eye, you should go to the hospital in time, have an eye examination, find out the cause of the disease and then treat it actively, so as not to delay the condition.