[Pay more attention to the role of etiological examination in clinical and pathological diagnosis].

Varies diseases happened in human being were induced by micro pathogens. According as the later studies, micro pathogens beget not only infective disease, but also contribute to kinds of tumors such as Non-Hodgkin's lymphoma. Micro pathogens bring on serious ocular disease, infectious corneal ulcer or endophthalmitis will lead to blind. So it will be a important assignment to the medical doctors to prevent infection-related disease. The medical doctor should choose appropriate histopathologic methods to fix on the micro pathogen what attributable to infection. We need to pay more attention to the infectious agents to get more information of the disease.