Microorganisms na-emetụta ọtụtụ akụkụ ahụ ike anyị gụnyere ịbawanye ohere nke ụfọdụ ọrịa cancer. Microorganisms nwere ike ịrụ ọrụ na mmalite mmalite na ọganihu kansa site n'imepụta nsị na-emebi DNA na metabolites carcinogenic. Ngwaahịa ndị a na-eme ka etuto ahụ na-eguzogide ọgwụ chemotherapeutic ma na-egbochi mmeghachi ahụ nke anụ ahụ maka ọrịa kansa.

A na-ahazi ihe nlele ụlọ ọgwụ dị ka pus, anụ ahụ, CSF, mmiri ahụ, sputum, broncho-alveolar lavage, mmamịrị, stool wdg site na usoro ọdịnala ọkọlọtọ wee nyochaa nke ọma. A na-achọpụtakwa nje bacteria na yist dịpụrụ adịpụ na nlele ụlọ ọgwụ site na usoro omenala ma nwalee maka ike ha nwere ọgwụ nje na antifungal n'otu n'otu. Usoro nyocha ndị a na-eduzi onye dọkịta nyocha nke ọma nke nje bacteria, fungal na mycobacteria, na-enyere aka ịmalite ngwa ngwa nke ọgwụ nje, antifungal ma ọ bụ ọgwụ mgbochi tubercular.

A na-enye nchoputa serological maka nje HIV, ịba ọcha n'anya B na ịba ọcha n'anya C site na nyocha ihe nlele serum na nyocha Immuno akpaghị aka. Achọpụta ihe mgbochi megide cytomegalovirus, nje virus Herpes simplex na-eme site na usoro ELISA. Nnwale nchọpụta serological pụrụ iche nke enyere na ngalaba anyị bụ Aspergillus galactomannan antigen ELISA assay.