Several parasitic infections involve trophozoites, including:
- Amebiasis: Caused by _Entamoeba histolytica_, where trophozoites invade the intestinal mucosa. - Giardiasis: Caused by _Giardia lamblia_, with trophozoites attaching to the intestinal lining. - Malaria: Caused by _Plasmodium_ species, where trophozoites are found within red blood cells. - Trichomoniasis: Caused by _Trichomonas vaginalis_, where trophozoites inhabit the urogenital tract.