Conjunctivitis is one of the most common eye diseases. The causes of conjunctivitis can be divided into microbial and non-microbial categories, and based on different sources, it can be classified as exogenous or endogenous. It can also be caused by the spread of inflammation from adjacent tissues, with microbial infection being the most common. Transmission primarily occurs through contact, hence it is necessary to strictly disinfect washbasins, towels, and other items that the patient has used.