Proceeds from website advertising help sustain Lab Tests Online. AACC is a not-for-profit organization and does not endorse non-AACC products and services.


Print this article
Share this page:
Also known as: Ova and Parasite Exam
Formal name: Parasitic Examination, Stool
Related tests: Stool Culture, Giardia, Cryptosporidium, and Entamoeba histolytica antigen tests

At a Glance

Why Get Tested?

To determine whether you have a parasite infecting your digestive tract

When to Get Tested?

When you have diarrhea that lasts more than a few days and/or have blood or mucus in your loose stools, especially if you have drunk unpurified water while camping or have traveled outside of the United States

Sample Required?

A fresh or preserved stool sample, sometimes multiple samples collected on different days

Test Preparation Needed?