Excessive eye discharge is a very common phenomenon both in daily life and in clinical practice. The most common cause of excessive eye stool in the clinic is infectious inflammation. For example, inflammation of the conjunctival cornea caused by bacteria, viruses, fungi, etc. For bacterial infections, the discharge is usually yellow, and for viral infections, the discharge is usually aqueous. There are many ways to cause infectiousness, such as dirt entering the eye, not paying attention to hand hygiene, while rubbing the eye with the hand, etc. can cause. In patients with chronic dacryocystitis, because the nasolacrimal ducts are inaccessible, tears cannot be discharged smoothly, and with the stimulation of inflammation, there is an increase in eye discharge. Increased eye stool is also common after many eye surgeries, such as pterygium surgery, cataract surgery, glaucoma surgery and vitreoretinal surgery, and is associated with more medication and conjunctival reactions after surgery. In conclusion, increased eye discharge is a common clinical manifestation of ocular inflammation, regardless of the cause, and the ultimate mechanism of occurrence is an inflammatory reaction in the eye, which stimulates the eye tissue lesion, thus causing increased discharge.