Stool Examination for Trophozoites

The Stool Examination for Trophozoites is a microscopic test used to detect trophozoites, the active, motile stage of certain intestinal parasites such as Entamoeba histolytica and Giardia lamblia.

A fresh stool sample is examined promptly under a microscope, as trophozoites are delicate and may not survive long outside the body. Their presence indicates an active parasitic infection in the intestine.

This test is particularly useful in patients with symptoms such as diarrhea, abdominal pain, and dysentery. It is often performed along with routine stool examination and other parasitological tests for comprehensive evaluation.

The purpose of this test is to

• To detect trophozoites in stool
• To diagnose intestinal parasitic infections
• To identify active infection
• To support gastrointestinal disease evaluation
• To guide appropriate treatment