Eye drool is a secretion from the human eye that is normally produced in small amounts. Also, external environmental factors such as dust, bacteria, volatile gas, bright light and radiation can stimulate the secretion of oil from the eyes and lead to the formation of eye drops. In addition, tear drainage disorders, late nights, and poor eye hygiene can all lead to eye discharge. It is worth noting that some diseases may also lead to eye boils, the common diseases are: 1. Bacterial conjunctivitis: Patients with acute bacterial conjunctivitis initially secrete a thin plasma-like discharge, as the disease progresses, the discharge gradually changes to mucus and purulent. Patients may have difficulty opening their eyes in the morning and have a large amount of eye stool. Chronic bacterial conjunctivitis progresses slowly and often evolves from acute conjunctivitis. Some less virulent pathogenic infections can also cause chronic bacterial conjunctivitis, and the secretions of such patients are usually mucus-like or white foamy; 2. Viral conjunctivitis: Patients have aqueous discharge from their eyes and can also show conjunctival congestion, pain, and photophobia. In the early stage of the disease, the disease usually develops in one eye, and in a few days, the opposite eye is involved, and when secondary bacterial infection occurs, purulent discharge also appears; 3, allergic conjunctivitis: the main symptoms are eye itching, usually accompanied by tearing, burning sensation, photophobia and increased eye stool, and the eye stool is mostly mucus; 4, trachoma: patients in the acute stage usually show more mucus in the eye, or mucopurulent discharge, i.e., eye stool, which can be accompanied by photophobia, tearing, foreign body sensation and other symptoms.