Print this article
Share this page:
Also known as: O&P
Formal name: Ova; Cysts and Parasite Exam
Related tests: Stool Culture; Giardia; Cryptosporidium; Entamoeba Histolytica antigen tests

At a Glance

Why Get Tested?

To determine whether you have a parasite infecting your gastrointestinal tract.

When to Get Tested?

  • When you have diarrhoea that lasts more than a few days and/or have blood or mucous in your loose stools
  • Have drunk stream or lake water while camping, or have travelled outside of the United Kingdom
  • Visited a farm or been in contact with sheep

Sample Required?

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

Test Preparation Needed?