[Observation on mitosis of Trichomonas vaginalis cultivated in vitro using modified Giemsa staining].

The observation showed that the percentage of Trichomonas vaginalis trophozoites at the stages of interphase, binary fission and multiple fission was 66.5%, 24.1% and 9.4% respectively. Cells in binary fission could be classified as premitotic phase, prophase, metaphase, anaphase and telophase. 3 to 8 microcosms were seen in one trophozoite under multiple fission and the percentage of trophozoites with 3 and 4 microcosms occupied 69% and 24.5% respectively. Cells with abnormal morphs were also observed.