evidence: One such myth is that the fungus Candida causes cancer or that cancer cells are actually a form of fungus. Research has revealed neither to be true. [...] And just to be clear: Cancer is not a fungus — this is one myth that needs to be permanently put to rest. [...] Having cancer may make some individuals more vulnerable to fungal infections. But having cancer doesn’t mean you will have a fungal infection, just as having a fungal infection doesn’t mean you will have cancer.