For Toxoplasma gondii, the diagnosis can be made by pathogenetic examination and serologic examination. 1. Pathogenetic examination: Pathogenetic examination is mostly examined by smear staining method. Centrifuge the secretion fluid, take part of the precipitate and smear it on a slide, then stain it with conventional staining method and put it under the microscope, then toxoplasma gondii can be seen. 2. Serologic examination: Usually, serum is taken from the patient, and antibodies to Toxoplasma gondii are detected by staining test and indirect immunofluorescence test. If it shows positive IgM antibody, it indicates the presence of recent toxoplasmosis infection. If it shows positive IgG, it indicates the presence of previous toxoplasmosis infection. Toxoplasma gondii infection is most common in pregnant women or immunocompromised people, and most do not have obvious symptoms. However, if immunocompromised, problems such as encephalitis, myelitis, and epilepsy may occur, so it is important to be cautious and seek medical attention as soon as possible after confirming the disease.