Cryptococcus do what test can be found out corrected for newborn cryptococcus do what test can be found out, can be found through the pathogenetic examination, serologic examination, pathological examination. 1. Pathogenetic examination: ink staining method, is a rapid, reliable, simple method, samples of cerebrospinal fluid, lesion tissue exudate, sputum, etc., repeated multiple times to find a high rate of positivity; fungal culture, take a small amount of specimen placed in the Shah’s medium, at room temperature or 37 ℃ in the culture of 3 ~ 4 days visible colony growth. 2. Serologic examination: because the patient’s serum can be measured in the antibody is not much, so the detection of antibody positive rate is not high, the specificity is not strong, only as an auxiliary diagnosis, to the latex agglutination test sensitivity and specificity is high, on the prognosis and efficacy of the predicted role. 3. Pathological examination: Cryptococcus neoformans meninges show chronic, non-specific, purulent inflammatory reaction, accompanied by a large number of lymphocytes and plasma cells infiltration, tuberculous granuloma manifestation can be seen in the chronic foci, and the bacillus can be seen in the tissue. Therefore, Cryptococcus neoformans infection can be detected through pathogenesis, serology and pathology, and should be promptly diagnosed and treated as soon as possible to avoid delay.