Parasitology Training Manual
- Abbreviation: Tvag
- Size of trophozoite: 4 - 32 microns
- A pathogen of the male and female urogenital system
- It may be found in stool as a contaminant from the vagina and therefore should be differentiated
from T. hominis.
- T. vaginalis is a pyriform shaped organism with a single anterior nucleus and an undulating
membrane extending half way down the length of the body.
- In a urogenital specimen it is necessary to find a living motile T. vaginalis trophozoite to report
the organism. In a stool specimen finding T. vaginalis in an iron haematoxylin stained preparation is sufficient
to report the organism.
Click on the image below to enlarge.
Return to the Introduction to Flagellates
Return to the Table of Contents